Henry Gregory was an Australian politician. He was a Ministerialist member of the Western Australian Legislative Assembly from 1897 to 1911, representing the electorates of North Coolgardie (1897-1901) and Menzies (1901-1911). He was state Minister for Mines from 1901 to 1904 under George Leake and Walter James and Minister for Mines and Railways from 1905 to 1911 under Hector Rason, Newton Moore and Frank Wilson. He rose to become Treasurer from 1910 to 1911, a role that also entailed him acting as Premier if Wilson was absent, but lost his seat at the 1911 state election.

The Division of Swan is an Australian electoral division located in Western Australia.