William Beamont FSA (1797–1889) was an English solicitor and local philanthropist.

Beamont was the first mayor of Warrington after its incorporation as a municipal borough in 1847.

He travelled extensively, including in the Holy Land, where he met William Holman Hunt.

His diaries, stored in the town's main library, are a valuable source of social history.

[3] He outlived his only son William John Beamont, who was a clergyman and author.