Britton lahir sebagai Constance Elaine Womack di [[Boston|Boston, Massachusetts]], dari pasangan Linda Jane (née Cochran) dan Edgar Allen Womack, Jr., yang merupakan seorang fisikawan dan eksekutif perusahaan energi.<ref>{{Cite web|title=Connie Britton Biography (1968-)|url=http://www.filmreference.com/film/18/Connie-Britton.html|website=www.filmreference.com|access-date=2021-02-13}}</ref><ref>{{Cite news|last=Times|first=Special to The New York|date=1963-12-29|title=Womack--Cochran (Published 1963)|url=https://www.nytimes.com/1963/12/29/archives/womackcochran.html|newspaper=The New York Times|language=en-US|issn=0362-4331|access-date=2021-02-13}}</ref> Dia menghabiskan tahun-tahun awalnya di [[Rockville, Maryland]].<ref>{{Cite web|date=2014-07-27|title=Connie Britton on Her Risky Path to Happiness {{!}} MORE Magazine|url=https://web.archive.org/web/20140727160703/http://www.more.com/entertainment/celebrities-movies-tv-music/connie-britton-her-risky-path-happiness?page=2|website=web.archive.org|access-date=2021-02-13|archive-date=2014-07-27|archive-url=https://web.archive.org/web/20140727160703/http://www.more.com/entertainment/celebrities-movies-tv-music/connie-britton-her-risky-path-happiness?page=2|dead-url=unfit}}</ref>
Ketika dia berusia tujuh tahun, dia pindah dengan orang tuanya dan saudara kembarnya, Cynthia, ke Lynchburg, Virginia.<ref>{{Cite web|date=2012-10-01|title=Nerdist Podcast #157: CONNIE BRITTON « Nerdist|url=https://web.archive.org/web/20121001234632/http://www.nerdist.com/2012/01/nerdist-podcast-157-connie-britton/|website=web.archive.org|access-date=2021-02-13|archive-date=2012-10-01|archive-url=https://web.archive.org/web/20121001234632/http://www.nerdist.com/2012/01/nerdist-podcast-157-connie-britton/|dead-url=unfit}}</ref> Ia bersekolah di E. C. Glass High School dan tampil dalam drama di Teater Sekolah Menengah E. C. Glass, dimana fotonya dipajang di Teater Alumni E. C. Glass. Dia mengambil jurusan studi Asia dengan konsentrasi bahasa Cina di [[Perguruan Tinggi Dartmouth|Dartmouth College]], dan belajar di [[Beijing Normal University]] di [[Beijing]] selama musim panas pertamanya bersama [[Kirsten Gillibrand]], yang sekarang menjadi [[Senator AS]] dari [[New York]].<ref>{{Cite web|date=2012-10-13|title=TheDartmouth.com: ‘Nashville’ star Connie Britton ’89 sits down to discuss her new show|url=https://web.archive.org/web/20121013163116/http://thedartmouth.com/2012/10/11/arts/britton|website=web.archive.org|access-date=2021-02-13|archive-date=2012-10-13|archive-url=https://web.archive.org/web/20121013163116/http://thedartmouth.com/2012/10/11/arts/britton|dead-url=unfit}}</ref><ref>{{Cite web|last=Mcdevitt|first=Caitlin|title=Connie Britton on roomie Kirsten Gillibrand|url=https://www.politico.com/blogs/click/2013/10/connie-britton-on-roomie-kirsten-gillibrand-174530|website=POLITICO|language=en|access-date=2021-02-13}}</ref> Setelah lulus pada [[1989]], Britton (kemudian Womack) pindah ke [[Kota New York|New York City]], di mana dia menghabiskan dua tahun di ''Neighborhood Playhouse School of the Theatre'' dengan [[Sanford Meisner]].<ref>Connie Britton on Off Camera with Sam Jones, November 12, 2015</ref>
