Old bill or Old Bill may refer to:
Slang for the police, used in the United Kingdom Old Bill (comics), a cartoon character created in 1914–15 by Bruce Bairnsfather The Better 'Ole or The Romance of Old Bill, 1917 stage musical comedy based on the cartoon character The Romance of Old Bill, 1918 British silent film based on the play Old Bill Williams (1787-1849), American mountain man and frontiersman
See also
Poor Old Bill, 1931 British comedy film