diff --git a/l10n/bundle.l10n.json b/l10n/bundle.l10n.json
index d760df97..5dc2839d 100644
--- a/l10n/bundle.l10n.json
+++ b/l10n/bundle.l10n.json
@@ -114,6 +114,7 @@
   "Choose page template": "Choose page template",
   "Choose parent page": "Choose parent page",
   "Please enter a name for the webpage.": "Please enter a name for the webpage.",
+  "Webpage names should contain only letters, numbers, hyphens, or underscores.": "Webpage names should contain only letters, numbers, hyphens, or underscores.",
   "A webpage with the same name already exists. Please enter a different name.": "A webpage with the same name already exists. Please enter a different name.",
   "No parent pages found for adding webfile": "No parent pages found for adding webfile",
   "File(s) already exist. No new files to add": "File(s) already exist. No new files to add",
diff --git a/loc/translations-export/vscode-powerplatform.xlf b/loc/translations-export/vscode-powerplatform.xlf
index 1aa26f8c..ff0c8584 100644
--- a/loc/translations-export/vscode-powerplatform.xlf
+++ b/loc/translations-export/vscode-powerplatform.xlf
@@ -375,6 +375,9 @@ The {3} represents Dataverse Environment's Organization ID (GUID)</note>
     <trans-unit id="++CODE++e433d73a7af9f003527cded50fa779687d0f923efc1beb323c3c75fd7062899f">
       <source xml:lang="en">Webfile(s) added successfully</source>
     </trans-unit>
+    <trans-unit id="++CODE++00dc171124ab430bbbaae51ec39dda1c5e7d045f382f56b1767d9e733292731c">
+      <source xml:lang="en">Webpage names should contain only letters, numbers, hyphens, or underscores.</source>
+    </trans-unit>
     <trans-unit id="++CODE++e4bb03b399c07eeda658d87305435a58818cb5e0c3b76ae054d99564cf14ef6b">
       <source xml:lang="en">What do you need help with?</source>
     </trans-unit>
diff --git a/src/client/power-pages/create/Webpage.ts b/src/client/power-pages/create/Webpage.ts
index 642c3b2e..e385bbbf 100644
--- a/src/client/power-pages/create/Webpage.ts
+++ b/src/client/power-pages/create/Webpage.ts
@@ -185,6 +185,9 @@ async function getWebpageInputs(
         if (!name) {
             return vscode.l10n.t("Please enter a name for the webpage.");
         }
+        if (!/^[A-Za-z0-9-_]+$/.test(name)) {
+            return vscode.l10n.t("Webpage names should contain only letters, numbers, hyphens, or underscores.");
+        }
         if (
             webpageNames
                 .map((n) => n.toLowerCase())