Admiral Frederick Byng Montresor (c. 1811 – 15 December 1887) was a Royal Navy officer who went on to be Commander-in-Chief, East Indies & Cape of Good Hope Station.

Montresor was made a lieutenant in the Royal Navy in 1835.

[1] He was promoted to captain in 1857, he took command of HMS Calypso[1] and sailed to Esquimalt in August 1858 to deal with American miners causing commotion in the Fraser River area.

[2] In 1862, he transferred to the command of HMS Severn before being appointed Commander-in-Chief, East Indies & Cape of Good Hope Station in January 1865.

[3] He was son of General Thomas Gage Montresor, grandson of John Montresor and nephew of Henry Tucker Montresor.