Flash Family History
Flash Name Meaning
English: topographic name from Middle English flasshe flask floshe flushe ‘shallow pool puddle swampy ground’ (Old French flache flos or Old Norse flask) denoting someone who lived by a pool or marshy place. English (Durham): this may allude to Flass Hall in Lanchester named from the same word as in 1 above. Americanized form of German and Jewish (Ashkenazic) Flasch .
Source: Dictionary of American Family Names 2nd edition, 2022