Frederick Arthur Greer, 1st Baron Fairfield, PC (1 October 1863 – 4 February 1945) was a British lawyer and judge.
Born to a merchant and his wife, Greer became a barrister and member of Gray's Inn, practicing in Liverpool.
In 1886, he was called to the Bar at Gray's Inn after winning the Bacon and Arden scholarships, and began practising as a barrister in Liverpool, where he met Moelwyn Hughes and Rigby Swift among others.
After continuing his career in London he was appointed a judge of the High Court of Justice (King's Bench Division) by Lord Birkenhead, and given the customary knighthood.
[3] In 1932 he served as the British representative to the International Congress of Comparative Law at The Hague, and in 1939 he was raised to the peerage as Baron Fairfield, of Caldy in the County Palatine of Chester.