diff --git a/docs.php b/docs.php
index 6c0ebe816..683cb92cd 100644
--- a/docs.php
+++ b/docs.php
@@ -60,10 +60,6 @@ foreach ($ACTIVE_ONLINE_LANGUAGES as $langcode => $langname) {
   If you are interested in how the documentation is edited and translated,
   you should read the <a href="http://doc.php.net/tutorial/">Documentation HOWTO</a>.
  </li>
- <li>
-  <a href="http://gtk.php.net/">PHP-GTK related documentation</a>
-  is hosted on the PHP-GTK website.
- </li>
  <li>
   <a href="http://pear.php.net/manual/">Documentation of PEAR and the various
   packages</a> can be found on a separate server.
diff --git a/license/contrib-guidelines-code.php b/license/contrib-guidelines-code.php
index 75b619464..1374f7d08 100644
--- a/license/contrib-guidelines-code.php
+++ b/license/contrib-guidelines-code.php
@@ -38,7 +38,6 @@ site_header("License Information", ["current" => "help"]);
 <ul>
   <li><a href="http://pecl.php.net/copyright.php">PECL</a></li>
   <li><a href="http://pear.php.net/copyright.php">PEAR</a></li>
-  <li><a href="http://gtk.php.net/copyright.php">GTK</a></li>
 </ul>
 
 <?php site_footer();
diff --git a/license/index.php b/license/index.php
index e45476ab4..4d8fbf02e 100644
--- a/license/index.php
+++ b/license/index.php
@@ -150,7 +150,6 @@ For related projects, please refer to licensing information on the Project websi
 <ul>
   <li><a href="http://pecl.php.net/copyright.php">PECL</a></li>
   <li><a href="http://pear.php.net/copyright.php">PEAR</a></li>
-  <li><a href="http://gtk.php.net/copyright.php">GTK</a></li>
 </ul>
 
 <?php site_footer(['sidebar' => $SIDEBAR_DATA]);
diff --git a/mailing-lists.php b/mailing-lists.php
index d33d3116d..8d6e3fe95 100644
--- a/mailing-lists.php
+++ b/mailing-lists.php
@@ -18,8 +18,7 @@ $SIDEBAR_DATA = '
 
 <p>
  Find the <a href="http://pear.php.net/support/lists.php">PEAR
- lists</a>, the <a href="http://pecl.php.net/support.php">PECL
- lists</a>, and the <a href="http://gtk.php.net/resources.php">PHP-GTK
+ lists</a> and the <a href="http://pecl.php.net/support.php">PECL
  lists</a> on their own pages.
 </p>
 
diff --git a/sites.php b/sites.php
index 8f249a001..7ce909c0f 100644
--- a/sites.php
+++ b/sites.php
@@ -152,15 +152,6 @@ site_header("A Tourist's Guide", ["current" => "help"]);
  i.e. documentation files.
 </p>
 
-<h2 id="gtk" class="content-header"><a href="http://gtk.php.net/">gtk.php.net</a>: PHP-GTK</h2>
-
-<p class="content-box">
- This web site is the home of the PHP-GTK project, which allows PHP to be
- used to build graphical interfaces, with slick interface and highly
- interactive content. You'll find the downloads and docs here,
- and the latest news from the project.
-</p>
-
 <h2 id="wiki" class="content-header"><a href="https://wiki.php.net/">wiki.php.net</a>: The PHP Wiki</h2>
 
 <p class="content-box">
@@ -197,7 +188,6 @@ $SIDEBAR = <<<SIDEBAR_DATA
 <p class='panel'><a href="#qa">Quality Assurance Team</a></p>
 <p class='panel'><a href="#git">Git Repository</a></p>
 <p class='panel'><a href="#svn">Archived SVN Repository</a></p>
-<p class='panel'><a href="#gtk">PHP-GTK</a></p>
 <p class='panel'><a href="#wiki">The PHP Wiki</a></h2>
 <p class='panel'><a href="#windows">PHP for Windows</a></h2>
 <p class='panel'><a href="#people">The PHP Developers Profiles</a></h2>
diff --git a/unsub.php b/unsub.php
index 380649488..0e2b1f2d2 100644
--- a/unsub.php
+++ b/unsub.php
@@ -6,8 +6,7 @@ $SIDEBAR_DATA = '
 
 <p>
  Unsubscribe from the <a href="http://pear.php.net/support/lists.php">PEAR
- lists</a>, the <a href="http://pecl.php.net/support.php">PECL
- lists</a>, and the <a href="http://gtk.php.net/resources.php">PHP-GTK
+ lists</a> and the <a href="http://pecl.php.net/support.php">PECL
  lists</a> on their own pages.
 </p>
 ';