Sidebar may refer to:
- Sidebar (publishing)
- Sidebar (law)
- Sidebar (computing), a type of graphical user interface element
- Windows Sidebar, in Windows Vista (rename Windows Desktop Gadgets in Windows 7)
- Bing Sidebar, a section of the search engine results display screen for social networking
- Sidebar, a longitudinal elastic wooden bar on some buggies and other light vehicles
- Sidebars, a Grammy-winning album by Eartha