Admiral Frederick Bullock (1788 – 6 February 1874) was a Royal Navy officer noted for his work as a surveyor, particularly in the Thames Estuary.

Bullock entered the Navy on 28 November 1804, serving in HMS Indefatigable under Captains Moore and Rodd in the English Channel.

[1] Bullock's first command was HMS Snap, from 1823, surveying the coast of Newfoundland, determining the precise positions of the many headlands that had been well charted by James Cook, but without the aid of chronometers.

[1] As commander of Fearless, Bullock was part of the squadron that accompanied Queen Victoria to and from Woolwich on her 1842 visit to Scotland.

To obtain accurate positions of shoals and banks out of sight of land, he set up a network of semi-permanent beacons as well as anchored vessels for triangulation, a development of the method earlier used by Thomas.