Picou Family History
Picou Name Meaning
Breton (Finistère): altered form of Picol from pikol ‘enormous colossal’ a nickname for someone with an imposing physique. The surname Picou is very rare in Brittany. French: from Old French picou ‘small cramp clamp’ hence probably a metonymic occupational name for someone who made or used such items.
Source: Dictionary of American Family Names 2nd edition, 2022