Brook William Bridges, 1st Baron FitzWalter (2 June 1801 – 6 December 1875), known as Sir Brook Bridges, Bt, between 1829 and 1868, was a British peer and Conservative politician.

Born at Goodnestone, Kent, FitzWalter was the eldest son of Sir Brook William Bridges, 4th Baronet, and Eleanor, daughter of John Foote.

In February 1852 FitzWalter was elected to the House of Commons for Kent East, but lost the seat already in July the same year.

The latter year he was created Baron FitzWalter, of Woodham Walter in the County of Essex.

The barony became extinct on his death while he was succeeded in the baronetcy by his younger brother, Reverend George Bridges.