Elmer William Engstrom (August 25, 1901 – October 30, 1984) was an American electrical engineer and corporate executive prominent for his role in the development of television.

After graduation, in 1923, Engstrom worked at the General Electric Company in Schenectady, New York, on radio technology and sound devices for motion pictures.

When this activity was spun off to the Radio Corporation of America (RCA) in 1930, he took on further responsibilities for these technologies plus research in electron tubes.

A mechanical scanner provided a 120-line, 24-frame picture from live and film subjects, and extensive field tests took place with the first cathode ray tube receivers.

He was active in the Princeton chapters of the American Red Cross, Sigma Xi,[7] the Rotary Club and the YMCA-YWCA.

[8] Engstrom was an active Christian leader, writing for Campus Crusade for Christ: There is one fundamental concept I have learned very clearly from my business experience.