Constantine v Imperial Hotels Ltd [1944] KB 693 is an English tort law and contract case, concerning the implied duty of an innkeeper to offer accommodation to a guest unless for just cause.

[2] Constantine claimed that the hotel committed a tort, deriving from the common law principle that innkeepers must not refuse accommodation to guests without just cause.

Furthermore, even though Constantine suffered no pecuniary damage, the violation of the right was in principle capable of justifying a remedy.

In 1954, Constantine wrote Colour Bar, a book dealing with racial prejudice in Britain.

[3] Cartoonist David Low drew one of his more famous cartoons attacking the hotel's treatment of Learie Constantine.