Gooch : 1: English (East Anglia): from the rare Middle English personal name Goche (also found as Joche). It was current in East Anglia from the early 12th to the early 13th centuries as a variant of Anglo-Norman French Go(s)ce Jo(s)ce a pet form of Old French Goscelin.2: English: alternatively a nickname from Anglo-Norman French gouge (from Latin gobio) the nominative form of Old French goujon (from Latin gobionem) ‘gudgeon’ perhaps for a gullible person.3: Welsh: in southwestern England possibly an Anglicized form of Welsh coch goch ‘red(-haired)’ though the sound change is irregular. Compare Gough. It may also be a variant of Cornish and Welsh Couch with the same meaning.4: Americanized form of German Gutsch.

Source : DAFN2 : Dictionary of American Family Names 2nd edition, ©2022 by Patrick Hanks and Oxford University Press
FANBI : The Oxford Dictionary if Family Names in Britain and Ireland, ©2016, University of the West of England

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