Sidney Family History
Sidney Surname Meaning
English (Durham): habitational name from Sidney Farm in Alfold (Surrey) from Old English sīd ‘large spacious long’ (dative sīdan) + ēg ‘island’.
Possibly also a habitational name from any of the places called Saint-Denis in Normandy named from the dedication of their churches to Saint Dionysius (see Dennis).
Source: Dictionary of American Family Names 2nd edition, 2022
