Number 11 is a novel by British writer Jonathan Coe, published in 2015. The book explores the changing social, economical and cultural landscape of the United Kingdom in the early 21st century. It is connected to Coe's previous novel What a Carve Up!, through shared themes and references to characters and events from the latter.

Jonathan Coe is an English novelist and writer. His work has an underlying preoccupation with political issues, although this serious engagement is often expressed comically in the form of satire. For example, What a Carve Up! (1994) reworks the plot of an old 1960s spoof horror film of the same name. It is set within the "carve up" of the UK's resources that was carried out by Margaret Thatcher's Conservative governments of the 1980s.