Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
SYDNEY
We don't have any stats on how common this name is. This is probably because it's very rare in the UK.
Region of origin
British Isles
Country of origin
England
Language of origin
English
Religion of origin
Christian
Classification
English
Related and similar surnames
SidneySydnes
Cydney
Cidney
Cydnie
Cydne
Sidnney
Siddney
Siidney
Sydnie
Sydne
Skidney
Sidny
Sydni
Sydeney
Sydnay
Sydn
Sidnie
Sydnee
Sydnea
Sydnei
Sidne
The Sydney surname in historical dictionaries
Patronymica Britannica (1860)
SYDNEY. The founder of this family in England was Sir William Sydney, Chamberlain of King Henry II., who came from Anjou with that monarch, and was buried at Lewes Priory in 1188. Baronage. The name is said to be a corruption of St. Denis.