diff --git a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
index 7368aabf7d..35ac7182af 100644
--- a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
+++ b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
@@ -286,7 +286,7 @@ QT_END_NAMESPACE
     if (qEnvironmentVariableIsEmpty("QT_MAC_DISABLE_FOREGROUND_APPLICATION_TRANSFORM")) {
         if (QSysInfo::macVersion() >= QSysInfo::MV_10_12) {
             // Move the application window to front to avoid launching behind the terminal.
-            // Ignoring other apps is neccessary (we must ignore the terminal), but makes
+            // Ignoring other apps is necessary (we must ignore the terminal), but makes
             // Qt apps play slightly less nice with other apps when lanching from Finder
             // (See the activateIgnoringOtherApps docs.)
             [[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
diff --git a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
index 234da57f59..2aaad38659 100644
--- a/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
+++ b/src/plugins/platforms/cocoa/qcocoafiledialoghelper.mm
@@ -428,7 +428,7 @@ static QString strippedText(QString s)
 {
     // Call this functions if mFileMode, mFileOptions,
     // mNameFilterDropDownList or mQDirFilter changes.
-    // The savepanel does not contain the neccessary functions for this.
+    // The savepanel does not contain the necessary functions for this.
     const QFileDialogOptions::FileMode fileMode = mOptions->fileMode();
     bool chooseFilesOnly = fileMode == QFileDialogOptions::ExistingFile
         || fileMode == QFileDialogOptions::ExistingFiles;
diff --git a/src/plugins/platforms/cocoa/qcocoaintegration.mm b/src/plugins/platforms/cocoa/qcocoaintegration.mm
index 18340f4ee1..fe4933ed6f 100644
--- a/src/plugins/platforms/cocoa/qcocoaintegration.mm
+++ b/src/plugins/platforms/cocoa/qcocoaintegration.mm
@@ -316,7 +316,7 @@ QCocoaIntegration::QCocoaIntegration(const QStringList &paramList)
         // from the terminal. On 10.12+ this call has been moved to applicationDidFinishLauching
         // to work around issues with loss of focus at startup.
         if (QSysInfo::macVersion() < QSysInfo::MV_10_12) {
-            // Ignoring other apps is neccessary (we must ignore the terminal), but makes
+            // Ignoring other apps is necessary (we must ignore the terminal), but makes
             // Qt apps play slightly less nice with other apps when lanching from Finder
             // (See the activateIgnoringOtherApps docs.)
             [cocoaApplication activateIgnoringOtherApps : YES];