diff --git a/src/gui/kernel/qplatformtheme.cpp b/src/gui/kernel/qplatformtheme.cpp
index 628b2c9d12..90edf4c49f 100644
--- a/src/gui/kernel/qplatformtheme.cpp
+++ b/src/gui/kernel/qplatformtheme.cpp
@@ -51,6 +51,7 @@
 #include <private/qiconloader_p.h>
 #include <private/qguiapplication_p.h>
 #include <qpa/qplatformintegration.h>
+#include <qpa/qplatformdialoghelper.h>
 
 
 QT_BEGIN_NAMESPACE
@@ -627,6 +628,63 @@ QList<QKeySequence> QPlatformTheme::keyBindings(QKeySequence::StandardKey key) c
     return list;
 }
 
+/*!
+   Returns the text of a standard \a button.
+
+  \since 5.3
+  \sa QMessageDialogOptions::StandardButton
+ */
+
+QString QPlatformTheme::standardButtonText(int button) const
+{
+    return QPlatformTheme::defaultStandardButtonText(button);
+}
+
+QString QPlatformTheme::defaultStandardButtonText(int button)
+{
+    switch (button) {
+    case QMessageDialogOptions::Ok:
+        return QCoreApplication::translate("QPlatformTheme", "OK");
+    case QMessageDialogOptions::Save:
+        return QCoreApplication::translate("QPlatformTheme", "Save");
+    case QMessageDialogOptions::SaveAll:
+        return QCoreApplication::translate("QPlatformTheme", "Save All");
+    case QMessageDialogOptions::Open:
+        return QCoreApplication::translate("QPlatformTheme", "Open");
+    case QMessageDialogOptions::Yes:
+        return QCoreApplication::translate("QPlatformTheme", "&Yes");
+    case QMessageDialogOptions::YesToAll:
+        return QCoreApplication::translate("QPlatformTheme", "Yes to &All");
+    case QMessageDialogOptions::No:
+        return QCoreApplication::translate("QPlatformTheme", "&No");
+    case QMessageDialogOptions::NoToAll:
+        return QCoreApplication::translate("QPlatformTheme", "N&o to All");
+    case QMessageDialogOptions::Abort:
+        return QCoreApplication::translate("QPlatformTheme", "Abort");
+    case QMessageDialogOptions::Retry:
+        return QCoreApplication::translate("QPlatformTheme", "Retry");
+    case QMessageDialogOptions::Ignore:
+        return QCoreApplication::translate("QPlatformTheme", "Ignore");
+    case QMessageDialogOptions::Close:
+        return QCoreApplication::translate("QPlatformTheme", "Close");
+    case QMessageDialogOptions::Cancel:
+        return QCoreApplication::translate("QPlatformTheme", "Cancel");
+    case QMessageDialogOptions::Discard:
+        return QCoreApplication::translate("QPlatformTheme", "Discard");
+    case QMessageDialogOptions::Help:
+        return QCoreApplication::translate("QPlatformTheme", "Help");
+    case QMessageDialogOptions::Apply:
+        return QCoreApplication::translate("QPlatformTheme", "Apply");
+    case QMessageDialogOptions::Reset:
+        return QCoreApplication::translate("QPlatformTheme", "Reset");
+    case QMessageDialogOptions::RestoreDefaults:
+        return QCoreApplication::translate("QPlatformTheme", "Restore Defaults");
+    default:
+        break;
+    }
+    return QString();
+}
+
 unsigned QPlatformThemePrivate::currentKeyPlatforms()
 {
     const uint keyboardScheme = QGuiApplicationPrivate::platformTheme()->themeHint(QPlatformTheme::KeyboardScheme).toInt();
diff --git a/src/gui/kernel/qplatformtheme.h b/src/gui/kernel/qplatformtheme.h
index 2ab8cef760..205a5bab69 100644
--- a/src/gui/kernel/qplatformtheme.h
+++ b/src/gui/kernel/qplatformtheme.h
@@ -296,7 +296,10 @@ public:
 
     virtual QList<QKeySequence> keyBindings(QKeySequence::StandardKey key) const;
 
+    virtual QString standardButtonText(int button) const;
+
     static QVariant defaultThemeHint(ThemeHint hint);
+    static QString defaultStandardButtonText(int button);
 
 protected:
     explicit QPlatformTheme(QPlatformThemePrivate *priv);
diff --git a/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp b/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
index ee295afe6c..42b3d64a47 100644
--- a/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
+++ b/src/platformsupport/themes/genericunix/qgenericunixthemes.cpp
@@ -57,6 +57,7 @@
 #include <private/qguiapplication_p.h>
 #include <qpa/qplatformintegration.h>
 #include <qpa/qplatformservices.h>
+#include <qpa/qplatformdialoghelper.h>
 
 #include <algorithm>
 
@@ -533,6 +534,25 @@ const QFont *QGnomeTheme::font(Font type) const
     }
 }
 
+QString QGnomeTheme::standardButtonText(int button) const
+{
+    switch (button) {
+    case QMessageDialogOptions::Ok:
+        return QCoreApplication::translate("QGnomeTheme", "&OK");
+    case QMessageDialogOptions::Save:
+        return QCoreApplication::translate("QGnomeTheme", "&Save");
+    case QMessageDialogOptions::Cancel:
+        return QCoreApplication::translate("QGnomeTheme", "&Cancel");
+    case QMessageDialogOptions::QMessageDialogOptions::Close:
+        return QCoreApplication::translate("QGnomeTheme", "&Close");
+    case QMessageDialogOptions::Discard:
+        return QCoreApplication::translate("QGnomeTheme", "Close without Saving");
+    default:
+        break;
+    }
+    return QPlatformTheme::standardButtonText(button);
+}
+
 /*!
     \brief Creates a UNIX theme according to the detected desktop environment.
 */
diff --git a/src/platformsupport/themes/genericunix/qgenericunixthemes_p.h b/src/platformsupport/themes/genericunix/qgenericunixthemes_p.h
index de53874941..36fcdd8dce 100644
--- a/src/platformsupport/themes/genericunix/qgenericunixthemes_p.h
+++ b/src/platformsupport/themes/genericunix/qgenericunixthemes_p.h
@@ -109,6 +109,7 @@ public:
     QGnomeTheme();
     virtual QVariant themeHint(ThemeHint hint) const;
     virtual const QFont *font(Font type) const;
+    QString standardButtonText(int button) const Q_DECL_OVERRIDE;
 
     static const char *name;
 };
diff --git a/src/plugins/platforms/android/qandroidplatformdialoghelpers.cpp b/src/plugins/platforms/android/qandroidplatformdialoghelpers.cpp
index 4c91e76e0f..4b99f2ce73 100644
--- a/src/plugins/platforms/android/qandroidplatformdialoghelpers.cpp
+++ b/src/plugins/platforms/android/qandroidplatformdialoghelpers.cpp
@@ -43,6 +43,8 @@
 #include <QtWidgets/QStyle>
 #include "qandroidplatformdialoghelpers.h"
 #include "androidjnimain.h"
+#include <private/qguiapplication_p.h>
+#include <qpa/qplatformtheme.h>
 
 namespace QtAndroidDialogHelpers {
 static jclass g_messageDialogHelperClass = 0;
@@ -61,49 +63,6 @@ void QAndroidPlatformMessageDialogHelper::exec()
     m_loop.exec();
 }
 
-static QString standardButtonText(int sbutton)
-{
-    switch (sbutton) {
-    case QMessageDialogOptions::Ok:
-        return QAndroidPlatformMessageDialogHelper::tr("OK");
-    case QMessageDialogOptions::Save:
-        return QAndroidPlatformMessageDialogHelper::tr("Save");
-    case QMessageDialogOptions::Open:
-        return QAndroidPlatformMessageDialogHelper::tr("Open");
-    case QMessageDialogOptions::Cancel:
-        return QAndroidPlatformMessageDialogHelper::tr("Cancel");
-    case QMessageDialogOptions::Close:
-        return QAndroidPlatformMessageDialogHelper::tr("Close");
-    case QMessageDialogOptions::Apply:
-        return QAndroidPlatformMessageDialogHelper::tr("Apply");
-    case QMessageDialogOptions::Reset:
-        return QAndroidPlatformMessageDialogHelper::tr("Reset");
-    case QMessageDialogOptions::Help:
-        return QAndroidPlatformMessageDialogHelper::tr("Help");
-    case QMessageDialogOptions::Discard:
-        return QAndroidPlatformMessageDialogHelper::tr("Discard");
-    case QMessageDialogOptions::Yes:
-        return QAndroidPlatformMessageDialogHelper::tr("Yes");
-    case QMessageDialogOptions::YesToAll:
-        return QAndroidPlatformMessageDialogHelper::tr("Yes to All");
-    case QMessageDialogOptions::No:
-        return QAndroidPlatformMessageDialogHelper::tr("No");
-    case QMessageDialogOptions::NoToAll:
-        return QAndroidPlatformMessageDialogHelper::tr("No to All");
-    case QMessageDialogOptions::SaveAll:
-        return QAndroidPlatformMessageDialogHelper::tr("Save All");
-    case QMessageDialogOptions::Abort:
-        return QAndroidPlatformMessageDialogHelper::tr("Abort");
-    case QMessageDialogOptions::Retry:
-        return QAndroidPlatformMessageDialogHelper::tr("Retry");
-    case QMessageDialogOptions::Ignore:
-        return QAndroidPlatformMessageDialogHelper::tr("Ignore");
-    case QMessageDialogOptions::RestoreDefaults:
-        return QAndroidPlatformMessageDialogHelper::tr("Restore Defaults");
-    } // switch
-    return QString();
-}
-
 bool QAndroidPlatformMessageDialogHelper::show(Qt::WindowFlags windowFlags
                                          , Qt::WindowModality windowModality
                                          , QWindow *parent)
@@ -134,8 +93,10 @@ bool QAndroidPlatformMessageDialogHelper::show(Qt::WindowFlags windowFlags
         m_javaMessageDialog.callMethod<void>("setDetailedText", "(Ljava/lang/String;)V", QJNIObjectPrivate::fromString(str).object());
 
     for (int i = QMessageDialogOptions::FirstButton; i < QMessageDialogOptions::LastButton; i<<=1) {
-        if ( opt->standardButtons() & i )
-            m_javaMessageDialog.callMethod<void>("addButton", "(ILjava/lang/String;)V", i, QJNIObjectPrivate::fromString(standardButtonText(i)).object());
+        if ( opt->standardButtons() & i ) {
+            const QString text = QGuiApplicationPrivate::platformTheme()->standardButtonText(i);
+            m_javaMessageDialog.callMethod<void>("addButton", "(ILjava/lang/String;)V", i, QJNIObjectPrivate::fromString(text).object());
+        }
     }
 
     m_javaMessageDialog.callMethod<void>("show", "(J)V", jlong(static_cast<QObject*>(this)));
diff --git a/src/plugins/platforms/android/qandroidplatformtheme.cpp b/src/plugins/platforms/android/qandroidplatformtheme.cpp
index 308bb70faf..ab29541f15 100644
--- a/src/plugins/platforms/android/qandroidplatformtheme.cpp
+++ b/src/plugins/platforms/android/qandroidplatformtheme.cpp
@@ -46,6 +46,7 @@
 #include "qandroidplatformdialoghelpers.h"
 #include <QVariant>
 #include <QFileInfo>
+#include <QCoreApplication>
 #include <qandroidplatformintegration.h>
 
 QAndroidPlatformTheme::QAndroidPlatformTheme(QAndroidPlatformNativeInterface *androidPlatformNativeInterface)
@@ -152,6 +153,21 @@ QVariant QAndroidPlatformTheme::themeHint(ThemeHint hint) const
     }
 }
 
+QString QAndroidPlatformTheme::standardButtonText(int button) const
+{
+    switch (button) {
+    case QMessageDialogOptions::Yes:
+        return QCoreApplication::translate("QAndroidPlatformTheme", "Yes");
+    case QMessageDialogOptions::YesToAll:
+        return QCoreApplication::translate("QAndroidPlatformTheme", "Yes to All");
+    case QMessageDialogOptions::No:
+        return QCoreApplication::translate("QAndroidPlatformTheme", "No");
+    case QMessageDialogOptions::NoToAll:
+        return QCoreApplication::translate("QAndroidPlatformTheme", "No to All");
+    }
+    return QPlatformTheme::standardButtonText(button);
+}
+
 bool QAndroidPlatformTheme::usePlatformNativeDialog(QPlatformTheme::DialogType type) const
 {
     if (type == MessageDialog)
diff --git a/src/plugins/platforms/android/qandroidplatformtheme.h b/src/plugins/platforms/android/qandroidplatformtheme.h
index ec259a9b0a..544061a7a2 100644
--- a/src/plugins/platforms/android/qandroidplatformtheme.h
+++ b/src/plugins/platforms/android/qandroidplatformtheme.h
@@ -54,6 +54,7 @@ public:
     virtual const QPalette *palette(Palette type = SystemPalette) const;
     virtual const QFont *font(Font type = SystemFont) const;
     virtual QVariant themeHint(ThemeHint hint) const;
+    QString standardButtonText(int button) const Q_DECL_OVERRIDE;
     virtual bool usePlatformNativeDialog(DialogType type) const;
     virtual QPlatformDialogHelper *createPlatformDialogHelper(DialogType type) const;
 
diff --git a/src/plugins/platforms/cocoa/messages.cpp b/src/plugins/platforms/cocoa/messages.cpp
index 3db1618a50..1fe80b28b1 100644
--- a/src/plugins/platforms/cocoa/messages.cpp
+++ b/src/plugins/platforms/cocoa/messages.cpp
@@ -93,4 +93,9 @@ QPlatformMenuItem::MenuRole detectMenuRole(const QString &caption)
     return QPlatformMenuItem::NoRole;
 }
 
+QString msgDialogButtonDiscard()
+{
+    return QCoreApplication::translate("QCocoaTheme", "Don't Save");
+}
+
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/cocoa/messages.h b/src/plugins/platforms/cocoa/messages.h
index 09705c1e21..97f3ea7009 100644
--- a/src/plugins/platforms/cocoa/messages.h
+++ b/src/plugins/platforms/cocoa/messages.h
@@ -53,6 +53,8 @@ QString qt_mac_applicationmenu_string(int type);
 
 QPlatformMenuItem::MenuRole detectMenuRole(const QString &caption);
 
+QString msgDialogButtonDiscard();
+
 QT_END_NAMESPACE
 
 #endif // MESSAGES_H
diff --git a/src/plugins/platforms/cocoa/qcocoatheme.h b/src/plugins/platforms/cocoa/qcocoatheme.h
index e4237c9b3e..d60cdf10d1 100644
--- a/src/plugins/platforms/cocoa/qcocoatheme.h
+++ b/src/plugins/platforms/cocoa/qcocoatheme.h
@@ -73,6 +73,7 @@ public:
                            QPlatformTheme::IconOptions options = 0) const;
 
     QVariant themeHint(ThemeHint hint) const;
+    QString standardButtonText(int button) const Q_DECL_OVERRIDE;
 
     static const char *name;
 
diff --git a/src/plugins/platforms/cocoa/qcocoatheme.mm b/src/plugins/platforms/cocoa/qcocoatheme.mm
index 1484ae2ba3..bf6c47f273 100644
--- a/src/plugins/platforms/cocoa/qcocoatheme.mm
+++ b/src/plugins/platforms/cocoa/qcocoatheme.mm
@@ -42,6 +42,7 @@
 #import <Cocoa/Cocoa.h>
 
 #include "qcocoatheme.h"
+#include "messages.h"
 
 #include <QtCore/QVariant>
 
@@ -292,6 +293,11 @@ QVariant QCocoaTheme::themeHint(ThemeHint hint) const
     return QPlatformTheme::themeHint(hint);
 }
 
+QString QCocoaTheme::standardButtonText(int button) const
+{
+    return button == QMessageDialogOptions::Discard ? msgDialogButtonDiscard() : QPlatformTheme::standardButtonText(button);
+}
+
 QPlatformMenuItem *QCocoaTheme::createPlatformMenuItem() const
 {
     return new QCocoaMenuItem();
diff --git a/src/widgets/widgets/qdialogbuttonbox.cpp b/src/widgets/widgets/qdialogbuttonbox.cpp
index 6b183d3759..d28fb66551 100644
--- a/src/widgets/widgets/qdialogbuttonbox.cpp
+++ b/src/widgets/widgets/qdialogbuttonbox.cpp
@@ -46,7 +46,9 @@
 #include <QtWidgets/qdialog.h>
 #include <QtWidgets/qapplication.h>
 #include <private/qwidget_p.h>
+#include <private/qguiapplication_p.h>
 #include <QtGui/qpa/qplatformdialoghelper.h>
+#include <QtGui/qpa/qplatformtheme.h>
 #include <QtWidgets/qaction.h>
 
 #include "qdialogbuttonbox.h"
@@ -246,7 +248,6 @@ public:
     void _q_handleButtonClicked();
     void addButtonsToLayout(const QList<QAbstractButton *> &buttonList, bool reverse);
     void retranslateStrings();
-    const char *standardButtonText(QDialogButtonBox::StandardButton sbutton) const;
 };
 
 QDialogButtonBoxPrivate::QDialogButtonBoxPrivate(Qt::Orientation orient)
@@ -428,7 +429,6 @@ QPushButton *QDialogButtonBoxPrivate::createButton(QDialogButtonBox::StandardBut
                                                    bool doLayout)
 {
     Q_Q(QDialogButtonBox);
-    const char *buttonText = 0;
     int icon = 0;
 
     switch (sbutton) {
@@ -477,9 +477,7 @@ QPushButton *QDialogButtonBoxPrivate::createButton(QDialogButtonBox::StandardBut
         return 0;
         ;
     }
-    buttonText = standardButtonText(sbutton);
-
-    QPushButton *button = new QPushButton(QDialogButtonBox::tr(buttonText), q);
+    QPushButton *button = new QPushButton(QGuiApplicationPrivate::platformTheme()->standardButtonText(sbutton), q);
     QStyle *style = q->style();
     if (style->styleHint(QStyle::SH_DialogButtonBox_ButtonsHaveIcons, 0, q) && icon != 0)
         button->setIcon(style->standardIcon(QStyle::StandardPixmap(icon), 0, q));
@@ -525,87 +523,15 @@ void QDialogButtonBoxPrivate::createStandardButtons(QDialogButtonBox::StandardBu
     layoutButtons();
 }
 
-const char *QDialogButtonBoxPrivate::standardButtonText(QDialogButtonBox::StandardButton sbutton) const
-{
-    const char *buttonText = 0;
-    bool gnomeLayout = (layoutPolicy == QDialogButtonBox::GnomeLayout);
-    switch (sbutton) {
-    case QDialogButtonBox::Ok:
-        buttonText = gnomeLayout ? QT_TRANSLATE_NOOP("QDialogButtonBox", "&OK") : QT_TRANSLATE_NOOP("QDialogButtonBox", "OK");
-        break;
-    case QDialogButtonBox::Save:
-        buttonText = gnomeLayout ? QT_TRANSLATE_NOOP("QDialogButtonBox", "&Save") : QT_TRANSLATE_NOOP("QDialogButtonBox", "Save");
-        break;
-    case QDialogButtonBox::Open:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Open");
-        break;
-    case QDialogButtonBox::Cancel:
-        buttonText = gnomeLayout ? QT_TRANSLATE_NOOP("QDialogButtonBox", "&Cancel") : QT_TRANSLATE_NOOP("QDialogButtonBox", "Cancel");
-        break;
-    case QDialogButtonBox::Close:
-        buttonText = gnomeLayout ? QT_TRANSLATE_NOOP("QDialogButtonBox", "&Close") : QT_TRANSLATE_NOOP("QDialogButtonBox", "Close");
-        break;
-    case QDialogButtonBox::Apply:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Apply");
-        break;
-    case QDialogButtonBox::Reset:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Reset");
-        break;
-    case QDialogButtonBox::Help:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Help");
-        break;
-    case QDialogButtonBox::Discard:
-        if (layoutPolicy == QDialogButtonBox::MacLayout)
-            buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Don't Save");
-        else if (layoutPolicy == QDialogButtonBox::GnomeLayout)
-            buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Close without Saving");
-        else
-            buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Discard");
-        break;
-    case QDialogButtonBox::Yes:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "&Yes");
-        break;
-    case QDialogButtonBox::YesToAll:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Yes to &All");
-        break;
-    case QDialogButtonBox::No:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "&No");
-        break;
-    case QDialogButtonBox::NoToAll:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "N&o to All");
-        break;
-    case QDialogButtonBox::SaveAll:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Save All");
-        break;
-    case QDialogButtonBox::Abort:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Abort");
-        break;
-    case QDialogButtonBox::Retry:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Retry");
-        break;
-    case QDialogButtonBox::Ignore:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Ignore");
-        break;
-    case QDialogButtonBox::RestoreDefaults:
-        buttonText = QT_TRANSLATE_NOOP("QDialogButtonBox", "Restore Defaults");
-        break;
-    case QDialogButtonBox::NoButton:
-        ;
-    } // switch
-    return buttonText;
-}
-
 void QDialogButtonBoxPrivate::retranslateStrings()
 {
-    const char *buttonText = 0;
-    QHash<QPushButton *, QDialogButtonBox::StandardButton>::iterator it =  standardButtonHash.begin();
-    while (it != standardButtonHash.end()) {
-        buttonText = standardButtonText(it.value());
-        if (buttonText) {
-            QPushButton *button = it.key();
-            button->setText(QDialogButtonBox::tr(buttonText));
-        }
-        ++it;
+    typedef QHash<QPushButton *, QDialogButtonBox::StandardButton>::iterator Iterator;
+
+    const Iterator end = standardButtonHash.end();
+    for (Iterator it = standardButtonHash.begin(); it != end; ++it) {
+        const QString text = QGuiApplicationPrivate::platformTheme()->standardButtonText(it.value());
+        if (!text.isEmpty())
+            it.key()->setText(text);
     }
 }
 
diff --git a/tests/auto/other/languagechange/tst_languagechange.cpp b/tests/auto/other/languagechange/tst_languagechange.cpp
index cc01d70454..16c3d56385 100644
--- a/tests/auto/other/languagechange/tst_languagechange.cpp
+++ b/tests/auto/other/languagechange/tst_languagechange.cpp
@@ -188,11 +188,11 @@ void tst_languageChange::retranslatability_data()
     //next we fill it with data
     QTest::newRow( "QInputDialog" )
         << int(InputDialog) << (QSet<QByteArray>()
-                    << "QDialogButtonBox::Cancel");
+                    << "QPlatformTheme::Cancel");
 
     QTest::newRow( "QColorDialog" )
         << int(ColorDialog) << (QSet<QByteArray>()
-                    << "QDialogButtonBox::Cancel"
+                    << "QPlatformTheme::Cancel"
                     << "QColorDialog::&Sat:"
                     << "QColorDialog::&Add to Custom Colors"
                     << "QColorDialog::&Green:"
@@ -237,8 +237,8 @@ void tst_languageChange::retranslatability_data()
                     << "QFileSystemModel::Type::All other platforms"
 #endif
 //                    << "QFileSystemModel::%1 KB"
-                    << "QDialogButtonBox::Cancel"
-                    << "QDialogButtonBox::Open"
+                    << "QPlatformTheme::Cancel"
+                    << "QPlatformTheme::Open"
                     << "QFileDialog::File &name:");
 }