Egil Ragnar Monn-Iversen (14 April 1928 – 7 July 2017) was a Norwegian musician, one of the most influential modern composers in Norway. He has had many important roles in Norwegian music, film, opera, television, comedy and theater. For some time he had so much influence in Norwegian culture that he got the nickname The Godfather, even though he always considered himself a down-to-earth musician.

Monn-Iversen owned a film production company, a record label, and an agency for musical artists, he was the founder of the vocal group The Monn Keys, he was the CEO at the Chat Noir theatre, chairman at The Norwegian Opera and from the 1960s until his death in 2017 worked in NRK (Norwegian Broadcasting Corporation) and Det norske teatret (The Norwegian Theatre). He composed scores to over 100 Norwegian movies and TV series.

Monn-Iversen was married to the Norwegian actor and singer Sølvi Wang until her death in 2011.