Robert Berkey Crosby (March 26, 1911 – January 7, 2000) was an American Republican politician who served as the 27th governor of Nebraska from 1953 to 1955.

After volunteering for two years in the United States Navy, Crosby served as Nebraska's 24th lieutenant governor, from 1947 to 1949.

In April 1954, Governor Crosby appointed Eva Bowring to the U.S. Senate to fill out the term of the late Dwight Griswold.

In July 1954, Governor Crosby appointed Samuel Williams Reynolds to the U.S. Senate to fill out the term of the late Hugh A. Butler.

Crosby's speaking style using combinations of support (logical, ethical and emotional ) helped distinguish him from his colleagues (Nykodym, 1968).