Martha Miriam Greenhouse[1] (June 14, 1921[2] – January 5, 2013[3][2]) was an American stage, film and television actress, who also served as an actors' union leader.

The Omaha, Nebraska-born actress spent her formative years in New York City, and was a 1939 graduate of Hunter College High School.

Her film credits included The Stepford Wives, Bananas, Daniel, and Tomorrow Night.

She appeared on such television and soap opera series as Route 66, Car 54, Where Are You?, Law & Order, The Jackie Gleason Show, The Phil Silvers Show, Ryan's Hope, and Love Is a Many Splendored Thing.

Greenhouse served as AFTRA' New York branch president for five terms, and on the Screen Actors Guild's National Board from 1981 to 1987.