diff --git a/BUILD.bazel b/BUILD.bazel
index 84847d1273..2793f807f8 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -912,7 +912,7 @@ filegroup(
         "src/objects/js-proxy.tq",
         "src/objects/js-regexp-string-iterator.tq",
         "src/objects/js-regexp.tq",
-        "src/objects/js-shadow-realms.tq",
+        "src/objects/js-shadow-realm.tq",
         "src/objects/js-struct.tq",
         "src/objects/js-temporal-objects.tq",
         "src/objects/js-weak-refs.tq",
@@ -1119,7 +1119,7 @@ filegroup(
         "src/builtins/builtins-promise.h",
         "src/builtins/builtins-reflect.cc",
         "src/builtins/builtins-regexp.cc",
-        "src/builtins/builtins-shadow-realms.cc",
+        "src/builtins/builtins-shadow-realm.cc",
         "src/builtins/builtins-sharedarraybuffer.cc",
         "src/builtins/builtins-string.cc",
         "src/builtins/builtins-struct.cc",
@@ -1727,8 +1727,8 @@ filegroup(
         "src/objects/js-regexp-string-iterator.h",
         "src/objects/js-regexp.cc",
         "src/objects/js-regexp.h",
-        "src/objects/js-shadow-realms.h",
-        "src/objects/js-shadow-realms-inl.h",
+        "src/objects/js-shadow-realm.h",
+        "src/objects/js-shadow-realm-inl.h",
         "src/objects/js-struct.h",
         "src/objects/js-struct-inl.h",
         "src/objects/js-temporal-objects.h",
@@ -2889,7 +2889,7 @@ filegroup(
         "src/builtins/builtins-proxy-gen.h",
         "src/builtins/builtins-regexp-gen.cc",
         "src/builtins/builtins-regexp-gen.h",
-        "src/builtins/builtins-shadowrealm-gen.cc",
+        "src/builtins/builtins-shadow-realm-gen.cc",
         "src/builtins/builtins-sharedarraybuffer-gen.cc",
         "src/builtins/builtins-string-gen.cc",
         "src/builtins/builtins-string-gen.h",
diff --git a/BUILD.gn b/BUILD.gn
index 950a7164dd..27cc68d8b7 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1786,7 +1786,7 @@ torque_files = [
   "src/objects/js-proxy.tq",
   "src/objects/js-regexp-string-iterator.tq",
   "src/objects/js-regexp.tq",
-  "src/objects/js-shadow-realms.tq",
+  "src/objects/js-shadow-realm.tq",
   "src/objects/js-struct.tq",
   "src/objects/js-temporal-objects.tq",
   "src/objects/js-weak-refs.tq",
@@ -2365,7 +2365,7 @@ v8_source_set("v8_initializers") {
     "src/builtins/builtins-proxy-gen.h",
     "src/builtins/builtins-regexp-gen.cc",
     "src/builtins/builtins-regexp-gen.h",
-    "src/builtins/builtins-shadowrealm-gen.cc",
+    "src/builtins/builtins-shadow-realm-gen.cc",
     "src/builtins/builtins-sharedarraybuffer-gen.cc",
     "src/builtins/builtins-string-gen.cc",
     "src/builtins/builtins-string-gen.h",
@@ -3215,8 +3215,8 @@ v8_header_set("v8_internal_headers") {
     "src/objects/js-regexp.h",
     "src/objects/js-segments-inl.h",
     "src/objects/js-segments.h",
-    "src/objects/js-shadow-realms-inl.h",
-    "src/objects/js-shadow-realms.h",
+    "src/objects/js-shadow-realm-inl.h",
+    "src/objects/js-shadow-realm.h",
     "src/objects/js-struct-inl.h",
     "src/objects/js-struct.h",
     "src/objects/js-temporal-objects-inl.h",
@@ -4159,7 +4159,7 @@ v8_source_set("v8_base_without_compiler") {
     "src/builtins/builtins-object.cc",
     "src/builtins/builtins-reflect.cc",
     "src/builtins/builtins-regexp.cc",
-    "src/builtins/builtins-shadow-realms.cc",
+    "src/builtins/builtins-shadow-realm.cc",
     "src/builtins/builtins-sharedarraybuffer.cc",
     "src/builtins/builtins-string.cc",
     "src/builtins/builtins-struct.cc",
diff --git a/src/builtins/base.tq b/src/builtins/base.tq
index e72f535b35..84ac5f825e 100644
--- a/src/builtins/base.tq
+++ b/src/builtins/base.tq
@@ -16,7 +16,7 @@
 #include 'src/objects/js-generator.h'
 #include 'src/objects/js-promise.h'
 #include 'src/objects/js-regexp-string-iterator.h'
-#include 'src/objects/js-shadow-realms.h'
+#include 'src/objects/js-shadow-realm.h'
 #include 'src/objects/js-struct.h'
 #include 'src/objects/js-weak-refs.h'
 #include 'src/objects/objects.h'
diff --git a/src/builtins/builtins-shadowrealm-gen.cc b/src/builtins/builtins-shadow-realm-gen.cc
similarity index 99%
rename from src/builtins/builtins-shadowrealm-gen.cc
rename to src/builtins/builtins-shadow-realm-gen.cc
index ca981dec59..7c2223bbc2 100644
--- a/src/builtins/builtins-shadowrealm-gen.cc
+++ b/src/builtins/builtins-shadow-realm-gen.cc
@@ -6,7 +6,7 @@
 #include "src/builtins/builtins.h"
 #include "src/codegen/code-stub-assembler.h"
 #include "src/objects/descriptor-array.h"
-#include "src/objects/js-shadow-realms.h"
+#include "src/objects/js-shadow-realm.h"
 #include "src/objects/module.h"
 
 namespace v8 {
diff --git a/src/builtins/builtins-shadow-realms.cc b/src/builtins/builtins-shadow-realm.cc
similarity index 99%
rename from src/builtins/builtins-shadow-realms.cc
rename to src/builtins/builtins-shadow-realm.cc
index f071bec895..26f60a4fa2 100644
--- a/src/builtins/builtins-shadow-realms.cc
+++ b/src/builtins/builtins-shadow-realm.cc
@@ -5,7 +5,7 @@
 #include "src/builtins/builtins-utils-inl.h"
 #include "src/codegen/compiler.h"
 #include "src/logging/counters.h"
-#include "src/objects/js-shadow-realms-inl.h"
+#include "src/objects/js-shadow-realm-inl.h"
 
 namespace v8 {
 namespace internal {
diff --git a/src/diagnostics/objects-debug.cc b/src/diagnostics/objects-debug.cc
index 6a541506da..43fdf51068 100644
--- a/src/diagnostics/objects-debug.cc
+++ b/src/diagnostics/objects-debug.cc
@@ -54,7 +54,7 @@
 #endif  // V8_INTL_SUPPORT
 #include "src/objects/js-regexp-inl.h"
 #include "src/objects/js-regexp-string-iterator-inl.h"
-#include "src/objects/js-shadow-realms-inl.h"
+#include "src/objects/js-shadow-realm-inl.h"
 #ifdef V8_INTL_SUPPORT
 #include "src/objects/js-relative-time-format-inl.h"
 #include "src/objects/js-segment-iterator-inl.h"
diff --git a/src/init/bootstrapper.cc b/src/init/bootstrapper.cc
index 4310ae08cb..956481b115 100644
--- a/src/init/bootstrapper.cc
+++ b/src/init/bootstrapper.cc
@@ -52,7 +52,7 @@
 #endif  // V8_INTL_SUPPORT
 #include "src/objects/js-regexp-string-iterator.h"
 #include "src/objects/js-regexp.h"
-#include "src/objects/js-shadow-realms.h"
+#include "src/objects/js-shadow-realm.h"
 #ifdef V8_INTL_SUPPORT
 #include "src/objects/js-relative-time-format.h"
 #include "src/objects/js-segment-iterator.h"
diff --git a/src/objects/all-objects-inl.h b/src/objects/all-objects-inl.h
index 0f894f9669..2efc008a31 100644
--- a/src/objects/all-objects-inl.h
+++ b/src/objects/all-objects-inl.h
@@ -47,7 +47,7 @@
 #include "src/objects/js-proxy-inl.h"
 #include "src/objects/js-regexp-inl.h"
 #include "src/objects/js-regexp-string-iterator-inl.h"
-#include "src/objects/js-shadow-realms-inl.h"
+#include "src/objects/js-shadow-realm-inl.h"
 #include "src/objects/js-struct-inl.h"
 #include "src/objects/js-temporal-objects-inl.h"
 #include "src/objects/js-weak-refs-inl.h"
diff --git a/src/objects/js-objects.cc b/src/objects/js-objects.cc
index 6c40f8d2b0..91ce284413 100644
--- a/src/objects/js-objects.cc
+++ b/src/objects/js-objects.cc
@@ -52,7 +52,7 @@
 #include "src/objects/js-promise.h"
 #include "src/objects/js-regexp-inl.h"
 #include "src/objects/js-regexp-string-iterator.h"
-#include "src/objects/js-shadow-realms.h"
+#include "src/objects/js-shadow-realm.h"
 #ifdef V8_INTL_SUPPORT
 #include "src/objects/js-relative-time-format.h"
 #include "src/objects/js-segment-iterator.h"
diff --git a/src/objects/js-shadow-realms-inl.h b/src/objects/js-shadow-realm-inl.h
similarity index 69%
rename from src/objects/js-shadow-realms-inl.h
rename to src/objects/js-shadow-realm-inl.h
index 80106e87dd..4d13592c6e 100644
--- a/src/objects/js-shadow-realms-inl.h
+++ b/src/objects/js-shadow-realm-inl.h
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_OBJECTS_JS_SHADOW_REALMS_INL_H_
-#define V8_OBJECTS_JS_SHADOW_REALMS_INL_H_
+#ifndef V8_OBJECTS_JS_SHADOW_REALM_INL_H_
+#define V8_OBJECTS_JS_SHADOW_REALM_INL_H_
 
 #include "src/api/api-inl.h"
 #include "src/heap/heap-write-barrier-inl.h"
-#include "src/objects/js-shadow-realms.h"
+#include "src/objects/js-shadow-realm.h"
 #include "src/objects/smi-inl.h"
 
 // Has to be the last include (doesn't have include guards):
@@ -16,7 +16,7 @@
 namespace v8 {
 namespace internal {
 
-#include "torque-generated/src/objects/js-shadow-realms-tq-inl.inc"
+#include "torque-generated/src/objects/js-shadow-realm-tq-inl.inc"
 
 TQ_OBJECT_CONSTRUCTORS_IMPL(JSShadowRealm)
 
@@ -25,4 +25,4 @@ TQ_OBJECT_CONSTRUCTORS_IMPL(JSShadowRealm)
 
 #include "src/objects/object-macros-undef.h"
 
-#endif  // V8_OBJECTS_JS_SHADOW_REALMS_INL_H_
+#endif  // V8_OBJECTS_JS_SHADOW_REALM_INL_H_
diff --git a/src/objects/js-shadow-realms.h b/src/objects/js-shadow-realm.h
similarity index 82%
rename from src/objects/js-shadow-realms.h
rename to src/objects/js-shadow-realm.h
index 131b7d84f8..6bba86b42d 100644
--- a/src/objects/js-shadow-realms.h
+++ b/src/objects/js-shadow-realm.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef V8_OBJECTS_JS_SHADOW_REALMS_H_
-#define V8_OBJECTS_JS_SHADOW_REALMS_H_
+#ifndef V8_OBJECTS_JS_SHADOW_REALM_H_
+#define V8_OBJECTS_JS_SHADOW_REALM_H_
 
 #include "src/objects/js-objects.h"
 #include "torque-generated/bit-fields.h"
@@ -16,7 +16,7 @@ namespace internal {
 
 class NativeContext;
 
-#include "torque-generated/src/objects/js-shadow-realms-tq.inc"
+#include "torque-generated/src/objects/js-shadow-realm-tq.inc"
 
 // ShadowRealm object from the JS ShadowRealm spec proposal:
 // https://github.com/tc39/proposal-shadowrealm
@@ -36,4 +36,4 @@ class JSShadowRealm
 
 #include "src/objects/object-macros-undef.h"
 
-#endif  // V8_OBJECTS_JS_SHADOW_REALMS_H_
+#endif  // V8_OBJECTS_JS_SHADOW_REALM_H_
diff --git a/src/objects/js-shadow-realms.tq b/src/objects/js-shadow-realm.tq
similarity index 100%
rename from src/objects/js-shadow-realms.tq
rename to src/objects/js-shadow-realm.tq