diff --git a/build.gradle b/build.gradle
index d0aecaae085..14d6bdca80b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -27,7 +27,12 @@ plugins {
 
 allprojects {
     repositories {
-        mavenCentral()
+        def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+        if (mavenCentralMirror) {
+            maven { url = mavenCentralMirror }
+        } else {
+            mavenCentral()
+        }
     }
 }
 
diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle
index 739f4c26e2d..d1b130b54fa 100644
--- a/buildSrc/build.gradle
+++ b/buildSrc/build.gradle
@@ -3,8 +3,13 @@ plugins {
 }
 
 repositories {
+	def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+	if (mavenCentralMirror) {
+		maven { url = mavenCentralMirror }
+	} else {
+		mavenCentral()
+	}
 	gradlePluginPortal()
-	mavenCentral()
 }
 
 dependencies {
diff --git a/gradle/scripts/lib/common-dependencies.gradle b/gradle/scripts/lib/common-dependencies.gradle
index 6299ff39ea5..4710f38e96c 100644
--- a/gradle/scripts/lib/common-dependencies.gradle
+++ b/gradle/scripts/lib/common-dependencies.gradle
@@ -4,7 +4,12 @@ import org.yaml.snakeyaml.Yaml
 
 buildscript {
     repositories {
-        mavenCentral()
+        def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+        if (mavenCentralMirror) {
+            maven { url = mavenCentralMirror }
+        } else {
+            mavenCentral()
+        }
         gradlePluginPortal()
     }
 
@@ -36,7 +41,12 @@ configure(dependencyManagementProject) {
         google()
         // Since we manage plugin versions here too.
         gradlePluginPortal()
-        mavenCentral()
+        def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+        if (mavenCentralMirror) {
+            maven { url = mavenCentralMirror }
+        } else {
+            mavenCentral()
+        }
     }
 
     javaPlatform {
diff --git a/gradle/scripts/lib/java-rpc-proto.gradle b/gradle/scripts/lib/java-rpc-proto.gradle
index 4187d08ef08..40df698d0c9 100644
--- a/gradle/scripts/lib/java-rpc-proto.gradle
+++ b/gradle/scripts/lib/java-rpc-proto.gradle
@@ -2,6 +2,10 @@ import org.gradle.internal.os.OperatingSystem
 
 buildscript {
     repositories {
+        def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+        if (mavenCentralMirror) {
+            maven { url = mavenCentralMirror }
+        }
         gradlePluginPortal()
     }
     dependencies {
diff --git a/gradle/scripts/lib/java-shade.gradle b/gradle/scripts/lib/java-shade.gradle
index 140de5873fe..8d8cd6c3296 100644
--- a/gradle/scripts/lib/java-shade.gradle
+++ b/gradle/scripts/lib/java-shade.gradle
@@ -5,6 +5,10 @@ import java.util.concurrent.atomic.AtomicInteger
 
 buildscript {
     repositories {
+        def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+        if (mavenCentralMirror) {
+            maven { url = mavenCentralMirror }
+        }
         gradlePluginPortal()
         google()
     }
diff --git a/gradle/scripts/version-catalog.gradle b/gradle/scripts/version-catalog.gradle
index d95e4a28fb9..e72d5a31a0e 100644
--- a/gradle/scripts/version-catalog.gradle
+++ b/gradle/scripts/version-catalog.gradle
@@ -4,7 +4,12 @@ import org.tomlj.TomlArray
 
 buildscript {
     repositories {
-        mavenCentral()
+        def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+        if (mavenCentralMirror) {
+            maven { url = mavenCentralMirror }
+        } else {
+            mavenCentral()
+        }
     }
 
     dependencies {
diff --git a/settings.gradle b/settings.gradle
index c149fee0d4d..277c5e7efee 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,3 +1,15 @@
+// Use -DmavenCentralMirror=<url> or systemProp.mavenCentralMirror=<url> in
+// ~/.gradle/gradle.properties to redirect all Maven Central requests to a mirror.
+pluginManagement {
+    repositories {
+        def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+        if (mavenCentralMirror) {
+            maven { url = mavenCentralMirror }
+        }
+        gradlePluginPortal()
+    }
+}
+
 plugins {
     // This plugin should be applied in settings.gradle, not build.gradle.
     // https://github.com/gradle/foojay-toolchains/issues/15
diff --git a/site-new/build.gradle b/site-new/build.gradle
index d5834fdc2ce..215a99f5aad 100644
--- a/site-new/build.gradle
+++ b/site-new/build.gradle
@@ -9,8 +9,13 @@ import java.util.stream.Collectors
 
 buildscript {
     repositories {
+        def mavenCentralMirror = System.getProperty('mavenCentralMirror')
+        if (mavenCentralMirror) {
+            maven { url = mavenCentralMirror }
+        } else {
+            mavenCentral()
+        }
         gradlePluginPortal()
-        mavenCentral()
     }
     dependencies {
         classpath libs.jsoup