Robert Patrick Webb (born 29 September 1972) is an English comedian, actor, writer, and television personality. He is one half of the double act Mitchell and Webb, alongside David Mitchell. Webb and Mitchell both starred in the Channel 4 sitcom Peep Show, in which Webb plays Jeremy "Jez" Usbourne. The two also starred in the sketch comedy programme That Mitchell and Webb Look, for which they then performed a stage adaption, The Two Faces of Mitchell and Webb. The duo starred in the 2007 film Magicians, and in the short-lived series Ambassadors. Webb headed the critically acclaimed sitcom The Smoking Room and was a performer in the sketch show Bruiser. Since 2017, he has starred alongside Mitchell in the Channel 4 comedy-drama Back.

Webb is also a regular comedy panelist, appearing on television shows, such as The Bubble, Have I Got News for You, Never Mind the Buzzcocks, QI, Mastermind, Was It Something I Said, and Argumental. He has also hosted and narrated several programmes. His other sitcom appearances include Blessed, The Bleak Old Shop of Stuff and Fresh Meat.