Lyman Enos Knapp (November 5 1837–October 9 1904) was an American Republican politician who was the Governor of the District of Alaska from 1889 to 1893. He was also a member of the Vermont House of Representatives from 1884 to 1885. He was born in Somerset, Vermont and died in Seattle, Washington.

Preceded by: Alfred P. Swineford

District Governor of Alaska 1889–1893

Succeeded by: James Sheakley