Ladd lahir dengan nama Cheryl Jean Stoppelmoor di [[Huron, South Dakota|Huron]], [[South Dakota]] merupakan puteri ke dua dari Dolores (née Katz), seorang karyawan, dan Marion Stoppelmoor (1929–2001), seorang insinyur kereta api.<ref>[http://www.filmreference.com/film/69/Cheryl-Ladd.html Cheryl Ladd Biography (1951–)] at Film Reference</ref> Dia menikah dengan sesama aktor [[David Ladd]], dan dikaruniai seorang puteri, [[Jordan Ladd|Jordan]].<ref>{{cite web|url=http://www.filmreference.com/film/14/Jordan-Ladd.html|title=Jordan Ladd Biography (1975–)|work=filmreference.com}}</ref> Dia menggnakan nama aslinya, di mana dia menyembunyikan setelah perceraian mereka. Dia kemudian menikah dengan produser musik Brian Russell sejak 1981, yang memiliki anak tiri, [[Lindsay Russell]].<ref>{{cite web|url=http://www.toonbarn.com/other-cartoons/greatest-tv-cartoon-theme-songs-13-josie-pussy-cats/|title=Greatest TV Cartoon Theme Songs #13: Josie and The Pussy Cats|work=ToonBarn}}</ref><ref>{{cite web|url=http://popdose.com/lost-in-the-70s-cheryl-ladd-think-it-over/|title=Lost in the ’70s: Cheryl Ladd, "Think It Over"|work=Popdose}}</ref><ref>{{cite news|url=https://www.nytimes.com/2001/03/28/theater/new-star-fills-balcony-doin-what-comes-natur-lly-familiar-face-can-rejuvenate.html|title=New Star Fills the Balcony, Doin' What Comes Natur'lly; A Familiar Face Can Rejuvenate a Musical|publisher=[[The New York Times]]|year=2001|accessdate=November 7, 2011}}</ref><ref>{{cite web|url=https://www.facebook.com/video/video.php?v=1399794085288|title=TV Land – TV Land Award Pop Culture Award: Charlie's Angels – Facebook|work=facebook.com}}</ref><ref>{{cite web|url=http://hallmarkchannel.com/loveseverlastingcourage/cast/Cheryl_Ladd|title=Cheryl Ladd as Irene on Love's Everlasting Courage – Hallmark Channel|work=Hallmark Channel}}</ref><ref>{{cite web|url=http://www.tv.com/shows/ncis/thirst-1401692/cast/|title=NCIS: Thirst|publisher=CBS Interactive|work=TV.com}}</ref><ref>{{cite web|url=http://www.buddytv.com/articles/chuck/chuck-season-5-news-meet-sarah-42030.aspx|title='Chuck' Season 5 News: Meet Sarah Walker's Angelic Mom|work=buddytv.com}}</ref>
