Wallace Barton Douglas (September 21, 1852 – December 9, 1930) was an American lawyer, jurist, and politician.

Wallace B. Douglas was born in Leyden, New York on September 21, 1852.

Douglas moved to Moorhead, Minnesota in 1883 and practiced law.

Douglas served as chairman of the Minnesota Board of Forestry.

Douglas died suddenly in Ferndale, Washington on December 9, 1930.