Absolutely Fabulous: 20th Anniversary (also known as Ab Fab at 20) is a set of three special episodes of the British television sitcom Absolutely Fabulous. It was broadcast on BBC One between 25 December 2011 and 23 July 2012 to commemorate the 20th anniversary of the series, which debuted in 1992.

• Jennifer Saunders
• Joanna Lumley
• Julia Sawalha
• June Whitfield
• Jane Horrocks
• Helen Lederer