Frederick William Hervey, 2nd Marquess of Bristol (1800–1864), styled Lord Hervey from 1803 to 1826 and Earl Jermyn from 1826 to 1859, was the eldest son of Frederick Hervey, 1st Marquess of Bristol. He was an MP for Bury from 1826 until he succeeded his father in the marquessate in 1859 and entered the House of Lords. He served as Treasurer of the Household under Sir Robert Peel between 1841 and 1846. He fathered seven children but was widowed in 1848. He died at Ickworth House, Suffolk, on 30 October 1864, aged 64.