Walker nació en [[Sheffield]], South Yorkshire,<ref>{{cite web |url=https://www.worldfootball.net/player_summary/kyle-walker/ |title=Kyle Walker: Profile |website=worldfootball.net |publisher=HEIM:SPIEL |accessdate=2020-09-05}}</ref> y es de ascendencia jamaiquinajamaicana.<ref>{{cite web |url=https://www.telegraph.co.uk/football/2016/06/09/euro-2016-one-in-three-players-could-play-for-another-country/ |title=One in three players at Euro 2016 could play for another country}}</ref> Creció en la zona de Sharrow de la ciudad,<ref name="telegraph-ambassador">{{cite news |url=https://www.telegraph.co.uk/sport/football/teams/tottenham-hotspur/8799568/Tottenham-Hotspur-v-Arsenal-Kyle-Walker-the-perfect-ambassador-for-Spurss-work-in-the-community.html |title=Tottenham Hotspur v Arsenal: Kyle Walker the perfect ambassador for Spurs's work in the community |newspaper=The Daily Telegraph |location=London |first=Duncan |last=White |date=2011-10-01 |accessdate=4 May 2017}}</ref> y asistió a la escuela infantil y juvenil Porter Croft, seguida de la escuela High Storrs hasta 2006.<ref>{{cite news |url=http://www.thestar.co.uk/news/education/social-media-spells-end-of-sheffield-school-old-boys-social-club-1-6897306 |newspaper=The Star |location=Sheffield |title=Social media spells end of Sheffield school old boys' social club |date=2014-10-16 |accessdate=2017-03-07 |archive-url=https://web.archive.org/web/20170905060140/http://www.thestar.co.uk/news/education/social-media-spells-end-of-sheffield-school-old-boys-social-club-1-6897306 |archive-date=2017-09-05 | }}</ref> Tiene seis hijos.<ref>https://www.news.com.au/sport/sports-life/english-football-star-kyle-walker-blasted-over-love-child-with-model/news-story/b1edd3a7dfd202989682d6738c12e628</ref>
