Jenna Lee Dewan (born December 3, 1980) is an American actress and dancer. She started her career as a backup dancer for Janet Jackson, and later worked with artists including Christina Aguilera, Pink, and Missy Elliott. She is known for her role as Nora Clark in the 2006 film Step Up. She has also starred on the short-lived NBC series The Playboy Club and had a recurring role on the FX series American Horror Story: Asylum. She portrayed Freya Beauchamp on the Lifetime series Witches of East End, Lucy Lane in The CW series Supergirl and its spin-off, Superman & Lois and Joanna in Soundtrack on Netflix. Dewan has hosted the reality television shows World of Dance and Flirty Dancing and served as a judge on Come Dance with Me. She currently stars as Bailey on ABC's The Rookie. She also had a recurring role on the FOX medical drama The Resident.

Dewan was born in Hartford, Connecticut, the daughter of Nancy Bursch Smith (née Bursch) and Darryll Dewan, who was a running back on the 1972 Notre Dame football team. Her father is of Lebanese and Polish descent and her mother is of German and English ancestry. Her parents divorced when she was young and her mother remarried Claude Brooks Smith. During high school at Grapevine High School in Grapevine, Texas, Dewan was a varsity cheerleader. She graduated in 1999 and was voted prom queen her senior year. She went to University of Southern California and was a member of the California Gamma Chapter of Pi Beta Phi.

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珍娜·迪万1980年出生在美国康涅狄格州首府哈特佛德市，后在德克萨斯州的葡萄藤市长大，曾就读于南加州大学。她的身上有一半的黎巴嫩血统，五岁时便迷上了舞蹈，后被一位舞蹈经纪人发掘，跟随珍妮·杰克逊、瑞奇·马丁、超级男孩等著名音乐人等上过世界各地的巡演舞台，此外还出演过贾斯丁·汀波莱克、曼迪·摩尔以及Missy Elliot等人的音乐录影带。表演方面，珍娜·迪万先是在肥皂喜剧《Quintuplets》、《The Young and The Restless》以及《Joey》中亮相，05年担任恐怖片《塔玛拉》的主角而登上银幕，06年又被好莱坞著名舞指安妮·弗莱彻相中在其第一部执导影片《舞出我人生》中出演了一位艺术学校舞蹈专业的高材生，剧情的羸弱以及她同男主角查宁·塔图姆之间缺乏火花的对手戏为本片带来的批评之声却不能阻挡它在北美尽收6532万美金的票房，表现着实亮眼，可惜的是迪万却没能获得男主角查宁·塔图姆那般的关注度。此外她还在06年上映的另外三部影片《Waterborne》、《Take the Lead》以及《咒怨2》中有过角色，最新作品则是和克里斯汀·史莱特共同主演的动作惊悚片《Love Lies Bleeding》。

Jenna Lee Dewan (Hartford, Connecticut, 1980. december 3. –) amerikai színésznő, táncosnő.

Legismertebb szerepe Nora Clark a Step Up (2006) című zenés-táncos romantikus filmben. Visszatérő szereplő a CBS csatorna Supergirl című sorozatában, melyben Lucy Lane-t alakítja.

1980. december 3-án született Hartfordban, Nancy Bursch és Darryll Dewan lányaként. Apja fél szíriai-libanoni és fél lengyel, anyja pedig német és angol származású. Jenna Grapevine-ben, Texas-ban nőtt fel, és 5 éves korában fedezte fel szeretetét a tánc iránt. A Grapevine High School-ban diplomázott, valamint a University of Southern California-ba is járt.

Több videóklipben is szerepelt, olyan előadókéban, mint Justin Timberlake, Mandy Moore és Missy Elliott. Olyan televíziós szitkomban tűnt fel, mint a Quintuplets, a Nyughatatlan fiatalok és a Joey. Leginkább mint Nora Clark ismert a Step Up című filmből, amelyben Channing Tatum volt a partnere. 2015-ben megkapta Lucy Lane, Lois Lane húgának és James Olsen barátnőjének szerepét.

Jenna Dewan é uma atriz e dançarina norte-americana. Ela é mais conhecida por seus papéis em Tamara, Ela Dança, Eu Danço, Witches of East End e Supergirl.

Jenna teve um relacionamento amoroso com Justin Timberlake em 2002 e com Shane West de 2003 a 2005.

Em 2005, conheceu o ator Channing Tatum no set de Step Up. Eles começaram a namorar logo após o término das filmagens. O casal ficou noivo em setembro de 2008 em Maui, Havaí. No dia 11 de julho de 2009, eles se casaram em Malibu, Califórnia.

Em dezembro de 2012, Jenna e Channing anunciaram a gravidez do primeiro filho do casal. Everly Elizabeth Maiselle Tatum nasceu no dia 31 de maio de 2013, em Londres.

Em 3 de abril de 2018 anunciaram a separação.