Dow Watters Harter (January 2, 1885 – September 4, 1971) was a U.S. Representative from Ohio.

First assistant prosecuting attorney of Summit County, Ohio from 1914 to 1916.

In 1920 he was named as a charter member and first president of the Akron Host Lions Club.

Harter was elected as a Democrat to the Seventy-third and to the four succeeding Congresses (March 4, 1933 – January 3, 1943).

He was an unsuccessful candidate for reelection in 1942 to the Seventy-eighth Congress.