The Rajah's Diamond is a cycle of four short stories by Robert Louis Stevenson.

First published in 1878 in a serial periodical London Magazine, they were republished in the first volume of New Arabian Nights.

The stories are: Dramafilms released a movie entitled The Tame Cat (1921), based on these stories, directed by Will H. Bradley and starring Marion Harding and Ray Irwin.

On the 24 November 1979 BBC Wales broadcast an operatic adaptation for television of The Rajah's Diamond (1979) by Alun Hoddinott, starring Geraint Evans and featuring the BBC National Orchestra of Wales.

This article about a collection of mystery short stories is a stub.