Frederick William Brawn (21 November 1857 – 24 July 1936) was an Australian politician.
He was born in Creswick to storekeeper James Brawn and Sarah Pearce.
He attended Creswick Grammar School and became a commission agent in Bloomfield and then a shareholder in Ballarat.
In 1907 he won a by-election for Wellington Province in the Victorian Legislative Council.
A non-Labor member, he later joined the Liberal, Nationalist and United Australia parties.