Crapper is slang term for a toilet.

It may also refer to:

Caganer ( "the crapper"), a figurine depicted in the act of defecation appearing in nativity scenes in Catalonia Frank Crapper (1911–1991), Australian footballer Fred Crapper (1909–1976), Australian footballer Harry Crapper (1905–1976), Australian footballer Thomas Crapper (1836–1910), British plumber