William Bispham Propsting, CMG (4 June 1861 – 3 December 1937) was an Australian lawyer and politician.

In 1886, Propsting return to Hobart and commenced studying law as an articled clerk under C. H. Elliston and C. E. Featherstone.

[1] In February 1899 Propsting entered politics as member for Hobart in the Tasmanian House of Assembly, and in August 1901 was elected leader of the opposition.

He was then elected a member of the legislative council, and in May 1906 joined the Sir John W. Evans ministry as attorney-general and minister for education.

He was elected president of the legislative council in July 1926 and held this position with distinction until his death at Hobart on 3 December 1937.