Henry Osborn (2 June 1859 – 22 July 1937) was an Australian politician, and a member of the Western Australian Legislative Assembly from 1908 until 1911 representing the seat of Roebourne, as well as the mayor of two different municipalities in Western Australia.
On 19 December 1894, he married Elizabeth Thompson at Roebourne, with whom he was to have two sons and one daughter.
In December 1894, he was elected mayor of the Roebourne Municipal Council, in which capacity he served for two years.
He entered the Midland Junction Municipal Council following a by-election in 1903 and continued for the next seven years.
He became involved in the Bruce Rock Co-operative Society, and was its inaugural chairman from 1917 until his death.