George William Littler Garrett (4 July 1852 – 26 February 1902) was a British clergyman and inventor who pioneered submarine design.
He was brought up in Moss Side in Manchester, Lancashire, England, the son of an Irish-born Church of England curate. He attended Rossall School near Fleetwood and then Manchester Grammar School, then studied Chemistry and General Science at Owens College (also in Manchester) before attending Trinity College, Dublin. He was appointed assistant master at the Manchester Mechanics' Institute and subsequently obtained a BA degree.
In 1873, he passed the Cambridge Theological Examination and became a curate in his father's parish.