Casualty 1900s, broadcast in the U.S. as London Hospital, is a British hospital drama inspired by but otherwise unrelated to BBC One drama Casualty.

Casualty (stylised as CASUAL+Y) is a British medical drama series that airs weekly on BBC One. Created by Jeremy Brock and Paul Unwin, it was first broadcast in the United Kingdom on BBC One on 6 September 1986. The original producer was Geraint Morris. Having been broadcast weekly since 1986, Casualty is the longest-running primetime medical drama series in the world.