Firuz Mustafayev Rajab oglu (; 18 October 1933 – 7 July 2018), also spelled as Feyruz Mustafayev was an Azerbaijani politician. He was born in Baku. Mustafayev served as acting Prime Minister of Azerbaijan. His terms lasted from April 7 to May 18, when he was replaced by Rahim Huseynov.