Henry Alexander MacRae (August 29, 1876 – October 2, 1944) was a Canadian film director, producer, and screenwriter during the silent era, working on many film serials for Universal Studios.

One of a number of Canadian pioneers in early Hollywood, MacRae was credited with many innovations in film production, including artificial light for interiors, the wind machine, double exposures and shooting at night.

[1] Henry MacRae was born in Toronto, Ontario, Canada on August 29, 1876, and died in Beverly Hills, California, United States on October 2, 1944, aged 68.

In addition to the many westerns and adventure films to his credit, he directed the first Thai-Hollywood co-production, Miss Suwanna of Siam, in 1923.

His producer credits in the 1940s include such serial films as The Green Hornet and Flash Gordon Conquers the Universe.