FSA abbreviation for 1. (Antiques) Fellow of the Society of Antiquaries 2. (Banking & Finance) (in Britain from 2001 to 2013) Financial Services Authority 3. (Government, Politics & Diplomacy) (in Britain) Food Standards Agency Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014FSA Farm Security Agency. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.