Walter Fyrst (né Fürst; 6 July 1901 – 23 February 1993) was a Norwegian filmmaker.

He was born in Kristiania (now Oslo), the son of the physician Valentin Fürst and Margarethe Christiane Dedekam.

His first film was Troll-elgen from 1927, based on two novels by Mikkjel Fønhus.

Fyrst made propaganda films for the Nazi regime during the occupation of Norway by Nazi Germany.

This biographical article related to film in Norway is a stub.