Joslin Family History
Joslin Surname Meaning
English (of Norman origin):: from the Old French personal name Goscelin Gosselin Joscelin from ancient Germanic Goz(e)lin a diminutive of a short form of compound names based on the element goz (from gaut an ethnic name meaning ‘Geat’ or ‘Goth’; see Goss).
Alternatively, perhaps a diminutive of the Old French personal name Josse (Old Breton Judoc); see Joyce.
Source: Dictionary of American Family Names 2nd edition, 2022
