William W. Hamilton (11 January 1810 – 8 March 1866) was an English-born American politician.
In 1854, Hamilton was a Whig Party candidate for District 24 of the Iowa Senate.
He won the seat and was elected president of the senate by his legislative colleagues.
[1][2] Hamilton was redistricted to District 31 prior to the 1856 Iowa Senate election and joined the Republican Party that year.
As the 1857 Constitution of Iowa came into force, Hamilton's duties as senate president were transferred to the lieutenant governor and his district was up for election.