Sir Henry Lumley Drayton PC KC (April 27, 1869 – August 28, 1950) was a Canadian lawyer and politician.

Drayton was first elected to the House of Commons of Canada from Kingston in a 1919 by-election as a Conservative Party candidate.

He served as Minister of Finance under both Sir Robert Borden and Arthur Meighen until the Conservative Party's defeat in the 1921 general election.

Drayton retired from politics in 1928 to become chairman of the Liquor Control Board of Ontario.

He attempted to return to Parliament in the 1945 election from a seat in Victoria, British Columbia, but lost narrowly to the Liberal candidate.