Harold Gerard Mosier (July 24, 1889 – August 7, 1971) was an American lawyer and politician who served as a U.S. Representative from Ohio for one term from 1937 to 1939.

He attended East High School in Cleveland, Ohio.

[1] He was graduated from Dartmouth College, Hanover, New Hampshire, in 1912 and from the law department of Harvard University in 1915.

Mosier married Grace Hoyt Jones of Columbus, Ohio, April 20, 1918.

This article incorporates public domain material from the Biographical Directory of the United States Congress