John Joseph Douglass (February 9, 1873 – April 5, 1939) was a member of the United States House of Representatives from Massachusetts.

He was born in East Boston, Suffolk County, Massachusetts, on February 9, 1873.

Douglass graduated from Boston College in 1893 and from the law department of Georgetown University, Washington, D.C., in 1896.

Douglass was elected as a Democrat to the Sixty-ninth and to the four succeeding Congresses (March 4, 1925 – January 3, 1935); chairman, House Committee on Education (Seventy-second and Seventy-third Congresses).

Douglass resumed the practice of law; served as commissioner of penal institutions of Boston from 1935 until his death in West Roxbury, Massachusetts in 1939.