Harvey Scott Barr, Jr. (August 21, 1916 – October 26, 2015) was an American politician from the U.S. state of Washington. Barr was born in Spokane. He served the 7th district in the Washington House of Representatives from 1977 to 1983, and the same district from 1983 to 1993 in the Washington State Senate. His term ended with his resignation in December 1993. He was a Republican.