Vice-Admiral Arthur Thomas Thrupp (8 June 1828 – 4 May 1889) was an officer of the British Royal Navy during the Crimean War and the Second Opium War, who held several sea commands, including Megaera, which he deliberately beached at the isolated Île Saint-Paul when she became unseaworthy.

Thrupp was promoted to commander on 17 September 1858, and served as commander aboard HMS Desperate in the North American Station and the West Indies, from 30 July 1862 to 7 November 1863.

Promoted to captain on 16 December 1865, Thrupp was in command of HMS Megaera when she was wrecked on St. Paul Island in the Antarctic in 1871.

He was completely exonerated by the ensuing court martial and subsequently served as captain of HMS Topaze from 21 July 1874 to 22 May 1877.

On 1 April 1878, Thrupp became captain of HMS Resistance as part of the Coast Guard in Liverpool.