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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).

0200400 1996200020052010201520202025
GirlsBoys
5,484
babies named Sidney, 1996–2025
#203
rank in 2025
2021
peak year

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.

01,0002,000 188018851890189519001905191019151920192519301935194019451950195519601965197019751980198519901995200020052010201520202025
GirlsBoys
108,987
babies named Sidney since 1880
#1,327
rank in 2025
1918
peak year

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

Nicknames for Sidney

Other spellings and forms

Famous people named Sidney

128 on Wikidata, most written-about first

  • Sidney Poitier
    Bahamian and American actor and diplomat (1927–2022)
  • Sidney Lumet
    American director, producer and screenwriter (1924–2011)
  • Sidney Sheldon
    American writer (1917–2007)
  • Sidney Altman
    Canadian American molecular biologist (1939-2022)
  • Sidney Govou
    French footballer (born 1979)
  • Sidney Crosby
    Canadian ice hockey player, born 1987
  • Sidney Bechet
    American jazz musician, 1897–1959
  • Sidney Webb
    English socialist economist, 1859–1947 (1859–1947)
  • Sidney Sam
    German association football player, born 1988
  • Sidney Nolan
    Australian artist (1917–1992)
  • Sidney Howard
    American playwright (1891–1939)
  • Sidney Lanier
    American 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.