The first name Sidney
A unisex name from English meaning “wide”, “island”.
Pronounced /ˈsɪdni/ 2 syllables Unisex Also a surname
Meaning and origin
English origin
Sidney means “wide”, “island” in English.
From Old English *Sīdaneġ, the name of a place in Surrey, from sīd (“wide”) + eġ (“island”).
From Wiktionary (CC BY-SA 4.0).
Popularity
Babies registered in England and Wales, 1996–2025
In 2025, 247 boys were named Sidney, making it the 203rd most popular boys’ name. It peaked in 2021, with 319 births (#168).
Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Sidney with other names.
Popularity in the United States
Babies named Sidney at birth, 1880–2025
In 2025, 146 boys born in the United States were named Sidney, the 1,327th most popular boys’ name that year. It was used most in 1918, when 1,879 were.
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Nicknames and spellings
Famous people named Sidney
128 on Wikidata, most written-about first
- Sidney PoitierBahamian and American actor and diplomat (1927–2022)
- Sidney LumetAmerican director, producer and screenwriter (1924–2011)
- Sidney SheldonAmerican writer (1917–2007)
- Sidney AltmanCanadian American molecular biologist (1939-2022)
- Sidney GovouFrench footballer (born 1979)
- Sidney CrosbyCanadian ice hockey player, born 1987
- Sidney BechetAmerican jazz musician, 1897–1959
- Sidney WebbEnglish socialist economist, 1859–1947 (1859–1947)
- Sidney SamGerman association football player, born 1988
- Sidney NolanAustralian artist (1917–1992)
- Sidney HowardAmerican playwright (1891–1939)
- Sidney LanierAmerican musician and poet (1842–1881)
More English unisex names
Questions
- What does the name Sidney mean?
- Sidney means “wide”, “island” in English.
- What is the origin of the name Sidney?
- From Old English *Sīdaneġ, the name of a place in Surrey, from sīd (“wide”) + eġ (“island”).
- How popular is the name Sidney?
- In 2025, 247 boys born in England and Wales were named Sidney, ranking 203rd. Its peak was 2021, with 319 births.
- What are nicknames for Sidney?
- Common nicknames for Sidney include Sid.
- Is Sidney a boy's or a girl's name?
- Both. Of the 108,987 US babies named Sidney since 1880, 23% were girls and 77% boys.
- When was Sidney most popular?
- 1918 in the United States, when 1,879 babies were named Sidney, its highest rank at 94th.
- How do you pronounce Sidney?
- Sidney is /ˈsɪdni/, 2 syllables.
- What are other spellings of Sidney?
- Sydney, Cydney, Sydnie, Sydne and Cidny.
- Is Sidney also a surname?
- Yes. Sidney is used as a surname as well as a first name; its surname page has the origin and how many people carry it.