约翰·彼得·萨斯加德（John Peter Sarsgaard，1971年3月7日-），美国演员。他的第一个角色是 1995 年的 Dead Man Walking。随后，他出演了 1998 年的独立电影《天堂的另一天》和《沙漠之蓝》。同年，萨斯加德在《铁面人》（1998 年）中扮演重要角色，饰演命运多舛的阿托斯之子拉乌尔。萨斯加德后来在《男孩不哭》（1999 年）中饰演约翰·洛特时获得了评论界的认可。他在 2001 年的电影《世界中心》中首次担任主角。次年，他在《帝国》、《索尔顿海》和《K-19：寡妇制造者》中担任配角。

凭借在《破碎的玻璃》中饰演的查尔斯·莱恩，萨斯加德获得了美国国家影评人协会最佳男配角奖，并获得了 2004 年金球奖最佳男配角奖提名。萨斯加德出演过一系列不拘一格的电影，包括 2004 年的喜剧剧情片《花园之国》、传记电影《金赛》（2004 年）、剧情片《垂死的高卢》（2005 年）以及大预算电影，如《飞行计划》（2005 年）、《贾赫德》（2005 年）、《骷髅钥匙》（2005 年）、《孤儿》（2009 年）、《教育》（2009 年）、《骑士与白昼》（2010 年）、《绿灯侠》（2011 年）、《洛夫莱斯》（2013 年）、凯利·赖查特的《夜行》（2013 年）、 蓝色茉莉花 （2013）、黑色弥撒 （2015） 和壮丽七人组 （2016）。萨斯加德还出现在美国电视连续剧《杀戮》（2013）中，饰演一名死囚，可能因残忍谋杀妻子而被错误定罪——他说，这场表演包括“我一生中做过的最好的表演”。2021 年，他在 Hulu 迷你剧《Dopesick》中反复扮演角色。

萨斯加德曾出演过非百老汇作品，包括《地球王国》、《劳拉·丹尼斯》、《烧掉这个》和《万尼亚舅舅》。2008年9月，他在《海鸥》中饰演鲍里斯·阿列克谢耶维奇·特里戈林，首次亮相百老汇。他与女演员玛吉·吉伦哈尔结婚。

John Peter Sarsgaard (born March 7, 1971) is an American actor. His first feature role was in Dead Man Walking in 1995. He then appeared in the 1998 independent films Another Day in Paradise and Desert Blue. That same year, Sarsgaard received a substantial role in The Man in the Iron Mask (1998), playing Raoul, the ill-fated son of Athos. Sarsgaard later achieved critical recognition when he was cast in Boys Don't Cry (1999) as John Lotter. He landed his first leading role in the 2001 film The Center of the World. The following year, he played supporting roles in Empire, The Salton Sea, and K-19: The Widowmaker.

For his portrayal of Charles Lane in Shattered Glass, Sarsgaard won the National Society of Film Critics Award for Best Supporting Actor and was nominated for the 2004 Golden Globe Award for Best Supporting Actor. Sarsgaard has appeared in an eclectic range of films, including the 2004 comedy-drama Garden State, the biographical film Kinsey (2004), the drama The Dying Gaul (2005), and big-budget films such as Flightplan (2005), Jarhead (2005), The Skeleton Key (2005), Orphan (2009), An Education (2009), Knight and Day (2010), Green Lantern (2011), Lovelace (2013), Kelly Reichardt's Night Moves (2013), Blue Jasmine (2013), Black Mass (2015), and The Magnificent Seven (2016). Sarsgaard also appeared in the American TV series The Killing (2013) as a man on death row perhaps wrongfully convicted for the brutal murder of his wife—a performance which he says included "some of the best acting I have ever done in my life." In 2021, he had a recurring role on the Hulu miniseries Dopesick.

Sarsgaard has appeared in Off-Broadway productions including Kingdom of Earth, Laura Dennis, Burn This, and Uncle Vanya. In September 2008, he made his Broadway debut as Boris Alexeyevich Trigorin in The Seagull. He is married to actress Maggie Gyllenhaal.

Zadebiutował jako aktor na scenie w czasie ostatniego roku studiów w St. Louis' Washington University. Był członkiem Mama's Pot Roast i słuchaczem Actors' Studio w Nowym Jorku. Występował w teatrach off-Broadway, m.in. w "Kingdom of Earth" Johna Mitchella. Po raz pierwszy na ekranie pojawił się w filmie Tima Robbinsa "Przed egzekucją". Trzy lata później zagrał niewielką rolę Raoula - syna Atosa (John Malkovich) i ukochanego Christine (Judith Godreche), który na rozkaz Ludwika XIV wyrusza na wojnę i ginie w obrazie "Człowiek w żelaznej masce". Sarsgaard związany jest przede wszystkim z kinem niezależnym. Zwrócił na siebie uwagę rolą Johna Lottera w filmie Kimberly Peirce "Nie czas na łzy", opartym na autentycznych wydarzeniach (historii śmierci Teeny Brandon). W kontrowersyjnym obrazie Wayne Wanga "Centrum świata" wcielił się w młodego biznesmena, prowadzącego perwersyjną grę z striptizerką. W świadomości szerszej publiczności jednak zaistniał dopiero, dzięki udziałowi w widowiskowym dramacie Kathryn Bigelow "K-19: The Widowmaker", gdzie pojawił się u boku Harrisona Forda.

John Peter Sarsgaard (Belleville, 7 de março de 1971) é um ator estadunidense. É principalmente conhecido pelos filmes Boys Don't Cry, Shattered Glass e Jarhead. Ele costuma fazer filmes de variados temas e gêneros, geralmente independentes. Já ganhou uma indicação ao Golden Globe Awards de Melhor Ator pelo filme Shattered Glass, duas indicações ao Independent Spirit Awards de Melhor Ator Coadjuvante, por Shattered Glass e por Kinsey, também ganhou o prêmio de Melhor Ator no Festival de Estocolmo por Garden State. No dia 2 de maio de 2009 casou-se com Maggie Gyllenhaal, atriz e irmã mais velha do ator Jake Gyllenhaal.

John Peter Sarsgaard (7 de marzo del 1971) es un actor estadounidense.