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Kay

OriginVariation of Gaius, Latin
Meaning"rejoice"
GenderBoy & girl
US rank · boys#7951

2025 SSA

US rank · girls#3946

2025 SSA

About Kay

Kay as a masculine name has diverse origins. It can be a short form of names like Kenneth or Kai, or derive from the Middle English word 'key.' In Arthurian legend, Sir Kay was King Arthur's foster brother and seneschal, lending the name a noble, medieval connection. It's also associated with the Old Norse name Kái, meaning 'rejoice.' This brief, one-syllable name has maintained steady but modest usage throughout the decades. Its simplicity and strong sound make it appealing for those seeking a straightforward yet distinctive name for a boy. Kay also has cross-cultural appeal, appearing in various forms in Germanic, Celtic, and Scandinavian traditions.

Kay for girls#3946 US

Kay, a cigarette-smoking, nightclubbing name of the 1930's, could be ready for a comeback along with cousins May/Mae and Ray/Rae.

Kay has been out of sight since the mid-eighties, but was in the double digits from 1936 to 1945, attached to several glamorous actresses of the period, such as fashion plate Kay Francis, as well as Eloise author Kay Thompson.

Kay was also once a unisex name, as in Sir Kay, in Arthurian legend one of the Knights of the Round Table.

Bottom line: Parents in search of a fresh, more cosmopolitan alternative to Kate might consider Kay..

Pronounced KAY.

As of October 2026, Kay ranked #7951 in US births in 2025 SSA, peaked at #448 in 1934.

World rankings

Kay for girls

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Kay on lists

Famous Kays

  • Kay E. KuterBoy

    American actor

  • Kay KyserBoy

    Bandleader, leader of Kay Kyser's Kollege of Musical Knowledge

  • Kathryn Ann "Kay" Bailey HutchisonGirl

    U.S. Senator from Texas

  • Katherine Linn "Kay" SageGirl

    American surrealist artist

  • Kay Starr (born Katherine Laverne Starks)Girl

    American singer

  • (Stephanie) Kay PanabakerGirl

    American actress

  • Marsha "Miss Kay" RobertsonGirl

    matriarch on TV's "Duck Dynasty"

  • Kay Redfield JamisonGirl

    American clinical psychologist

  • Kay Thompson (born Catherine Louise Fink)Girl

    American children's author

  • (Justine) Kay KendallGirl

    English actress

  • Kay Ann LenzGirl

    American actress

  • Kay Francis (born Katharine Edwina Gibbs)Girl

    American actress

  • Kristin "Kay" BoutilierGirl

    Canadian singer,songwriter

  • Katharine Faulkner "Kay" SwiftGirl

    American composer, namesake of musical "Oh, Kay!"

Kay in pop culture

  • Kay FaradayBoy

    main character in Ace Attorney spinoff, 'Ace Attorney Investigations'

  • Sir Kay (sometimes Key)Boy

    King Arthur's foster brother and one of the first Knights of the Round Table

  • Kai (or Kay)Boy

    character from Hans Christian Andersen's fairy tale "The Snow Queen"

  • Mary KayGirl

    American cosmetics company

  • Kay JewelersGirl

    chain with motto "Every kiss begins with Kay"

  • Katherine "Kay" CorleoneGirl

    character from "The Godfather"

  • Kay BennettGirl

    character on soap "Passions"

  • "If You See KayGirl

    " a song by alternative rock band The Script

  • Kay FaradayGirl

    from Ace Attorney Investigations

  • Kay ScarpettaGirl

    character in books by Patricia Cornwell

  • Lady KayGirl

    character in musical "Oh, Kay!"

Variations & nicknames

Kay in blog posts

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