That’s where a simple plugin called Exclude Pages from Navigation comes in. This plugin adds a check box, “include this page in menus”, uncheck this to exclude pages from menu that users see on your site.
To install the plugin, hover over Plugins in the dashboard main menu and select “Add new” from the list. Choose the search option if necessary, and type in “exclude pages.” Then select to download the first plugin in the search list and hit the activate button. Now if you go back to a page on the site in the editor, you’ll see a check box in the lower right hand corner that is checked on for that page to be included. To take it out of the menu, simply uncheck it and hit update.
That’s it, an easy and quick way to exclude pages from menu on WordPress.