diff --git a/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala b/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala
index 1248b1c368e71..eb858e93aa7fb 100644
--- a/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala
+++ b/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala
@@ -26,11 +26,13 @@ import org.apache.spark.deploy.DeployMessages.{KillDriverResponse, MasterStateRe
 import org.apache.spark.deploy.JsonProtocol
 import org.apache.spark.deploy.StandaloneResourceUtils._
 import org.apache.spark.deploy.master._
+import org.apache.spark.internal.config.UI.MASTER_UI_TITLE
 import org.apache.spark.ui.{UIUtils, WebUIPage}
 import org.apache.spark.util.Utils
 
 private[ui] class MasterPage(parent: MasterWebUI) extends WebUIPage("") {
   private val master = parent.masterEndpointRef
+  private val title = parent.master.conf.get(MASTER_UI_TITLE)
   private val jsonFieldPattern = "/json/([a-zA-Z]+).*".r
 
   def getMasterState: MasterStateResponse = {
@@ -266,7 +268,7 @@ private[ui] class MasterPage(parent: MasterWebUI) extends WebUIPage("") {
           }
         </div>;
 
-    UIUtils.basicSparkPage(request, content, "Spark Master at " + state.uri)
+    UIUtils.basicSparkPage(request, content, title.getOrElse("Spark Master at " + state.uri))
   }
 
   private def workerRow(showResourceColumn: Boolean): WorkerInfo => Seq[Node] = worker => {
diff --git a/core/src/main/scala/org/apache/spark/internal/config/UI.scala b/core/src/main/scala/org/apache/spark/internal/config/UI.scala
index c4c5796a2b278..e02cb7a968314 100644
--- a/core/src/main/scala/org/apache/spark/internal/config/UI.scala
+++ b/core/src/main/scala/org/apache/spark/internal/config/UI.scala
@@ -244,6 +244,13 @@ private[spark] object UI {
     .checkValues(Set("ALLOW", "LOCAL", "DENY"))
     .createWithDefault("LOCAL")
 
+  val MASTER_UI_TITLE = ConfigBuilder("spark.master.ui.title")
+    .version("4.0.0")
+    .doc("Specifies the title of the Master UI page. If unset, `Spark Master at <MasterURL>` " +
+      "is used by default.")
+    .stringConf
+    .createOptional
+
   val UI_SQL_GROUP_SUB_EXECUTION_ENABLED = ConfigBuilder("spark.ui.groupSQLSubExecutionEnabled")
     .doc("Whether to group sub executions together in SQL UI when they belong to the same " +
       "root execution")
diff --git a/core/src/test/scala/org/apache/spark/deploy/master/MasterWorkerUISuite.scala b/core/src/test/scala/org/apache/spark/deploy/master/MasterWorkerUISuite.scala
index 428539068a107..5f206f611fe6b 100644
--- a/core/src/test/scala/org/apache/spark/deploy/master/MasterWorkerUISuite.scala
+++ b/core/src/test/scala/org/apache/spark/deploy/master/MasterWorkerUISuite.scala
@@ -140,4 +140,22 @@ class MasterWorkerUISuite extends MasterSuiteBase {
       System.getProperties().remove("spark.ui.proxyBase")
     }
   }
+
+  test("SPARK-49007: Support custom master web ui title") {
+    implicit val formats = org.json4s.DefaultFormats
+    val title = "Spark Custom Title"
+    val conf = new SparkConf().set(MASTER_UI_TITLE, title)
+    val localCluster = LocalSparkCluster(2, 2, 512, conf)
+    localCluster.start()
+    val masterUrl = s"http://${Utils.localHostNameForURI()}:${localCluster.masterWebUIPort}"
+    try {
+      eventually(timeout(50.seconds), interval(100.milliseconds)) {
+        val html = Utils
+          .tryWithResource(Source.fromURL(s"$masterUrl/"))(_.getLines().mkString("\n"))
+        html should include (title)
+      }
+    } finally {
+      localCluster.stop()
+    }
+  }
 }