Admiral Crawford Maclachlan, CB (11 July 1867 – 21 April 1952) was a Royal Navy officer.
He served in China in 1900, and later became navigation officer of HMS Exmouth, the flagship of Admiral of the Fleet Sir Arthur Knyvet Wilson, Commander-in-Chief, Home Fleet.
Whilst in command of Scylla, his skiff capsized off St Johns, Antigua; he managed to righting her and, with water up to his waist, drifted for two days, on one occasion being washed overboard and attacked by sharks, before being found and rescued.
[2] In 1910, he served on an Admiralty committee appointed to consider the question of the berthing accommodation for His Majesty's ships in the dockyards and other waters.
In October 1921, he was appointed Rear-Admiral and Senior Naval Officer, Yangtze.