Bilby Family History
Bilby Name Meaning
English:: variant of Bielby . shortened form of Bilsby a habitational name from Bilsby in Lincolnshire so named with the Old Norse personal name Billi + bȳ ‘farmstead settlement’. However it is equally possible that Bilsby is an altered form of Bilby with an intrusive -s-.
Source: Dictionary of American Family Names 2nd edition, 2022