Donald J. Bennett (May 6, 1931 – August 30, 1987) was a United States military officer, politician, and a businessman.

He served in the United States Army and retired as a lieutenant colonel.

Bennett lived in Fairbanks, Alaska and was a businessman.

He served in the Alaska House of Representatives from 1977 to 1979 and was a Republican.

Bennett then served in the Alaska Senate from 1979 until his death.