Hiding SharePoint Lists

Sometimes we do feel a need to hide SharePoint Lists. Following are few ways which could some in handy while trying to achieve this objective.
Using SharePoint Designer:

1. Start SharePoint Designer and open your site.
2. Click on the “Lists and Libraries” in the Navigation pane
3. Select the list/library which you need to hide
4. On the details page check the “Hide from browser” checkbox and save
5. To unhide the list un-check the checkbox and save 

SharePoint Designer

Using Code:
The other way is to obviously do this through code. SPList has a property as Hidden which can be set to true or false

using (SPSite site = new SPSite("http://YourSiteUrl"))
                {
                    using (SPWeb web = site.OpenWeb())
                    {
                        SPList list = web.Lists["Announcements"];
                        //Set this property to true or false accordingly
                        list.Hidden = false;
                        list.Update();
                    }
                }