Sidney

unisexOld English

Sidney is an unisex name of Old English origin, meaning “Wide island; riverside meadow”.

MeaningWide island; riverside meadow
GenderUnisex
OriginOld English
PronunciationSID-nee
TraditionModern & Classic
Used inUnited States, United Kingdom, Australia, Canada

Meaning and origin of Sidney

Sidney began as an English surname from a place name, usually explained from Old English sid, 'wide', and eg, 'island' or 'land by water', so 'wide riverside meadow'. A popular but unproven story derives it instead from Saint-Denis in France. The poet and courtier Sir Philip Sidney made the surname illustrious, and it became a given name from the eighteenth century. The Australian city of Sydney, spelled differently, was named after Lord Sydney.

Is Sidney a religious name?

Sidney has no religious meaning; it is an English surname name. The Saint-Denis story would link it to a French saint, but historians generally doubt it.

How popular is Sidney?

Used for both boys and girls in English-speaking countries; Sydney is now the more common spelling for girls.

Gifts with the name Sidney

As an Amazon Associate we earn from qualifying purchases. We may earn a small commission from these links, at no extra cost to you.

Spellings and variants of Sidney

SydneySidSyd

Names similar to Sidney

More unisex names

Frequently asked questions

What does the name Sidney mean?

Sidney means 'Wide island; riverside meadow'. It is of Old English origin.

Does Sidney have a religious meaning?

Sidney has no religious meaning; it is an English surname name. The Saint-Denis story would link it to a French saint, but historians generally doubt it.

How do you pronounce Sidney?

Sidney is pronounced SID-nee.

Is Sidney a boy or girl name?

Sidney is used for both boys and girls.

Updated October 2026. Spotted a mistake? Tell us.