Joncas Family History
Joncas Surname Meaning
French (southern): topographic name from Occitan jouncas ‘place where there is an abundance of rushes reeds’ (ultimately derived from Latin juncus ‘rush reed’); or a habitational name from (Le) Joncas the name of several places in the southwestern part of France.
This surname is very rare in France. Compare Junco.
Source: Dictionary of American Family Names 2nd edition, 2022
