Elizabeth Stamatina "Tina" Fey (; born May 18, 1970) is an American actress, comedian, writer, producer, and playwright. Fey was a cast member and head writer for the NBC sketch comedy series Saturday Night Live from 1997 to 2006. After her departure from SNL, she created the NBC sitcom 30 Rock (2006–2013, 2020) and the Netflix sitcom Unbreakable Kimmy Schmidt (2015–2020), the former of which she also starred in. Fey is also known for her work in film, including Mean Girls (2004), Baby Mama (2008), Date Night (2010), Megamind (2010), Muppets Most Wanted (2014), Sisters (2015), Whiskey Tango Foxtrot (2016), Wine Country (2019), and Soul (2020).

Fey broke into comedy as a featured player in the Chicago-based improvisational comedy group The Second City. She joined Saturday Night Live (SNL) as a writer, later becoming head writer and a performer, appearing as co-anchor in the Weekend Update segment and, later, developing a satirical portrayal of 2008 Republican vice presidential candidate Sarah Palin in subsequent guest appearances. In 2004, she co-starred in and wrote the screenplay for Mean Girls, which was adapted from the 2002 self-help book Queen Bees and Wannabes. After leaving SNL in 2006, Fey created the television series 30 Rock for Broadway Video, a sitcom loosely based on her experiences at SNL. In the series, Fey starred as Liz Lemon, the head writer of a fictional sketch comedy series. In 2011, she released her memoir, Bossypants, which topped The New York Times Best Seller list for five weeks and garnered her a Grammy Award nomination. In 2015, she co-created the comedy series Unbreakable Kimmy Schmidt. Fey also created the musical adaptation Mean Girls, which premiered on Broadway in 2018, and earned her a Tony Award nomination.

Fey has received numerous accolades, including nine Primetime Emmy Awards, three Golden Globe Awards, five Screen Actors Guild Awards, and seven Writers Guild of America Awards. In 2008, the Associated Press gave Fey the AP Entertainer of the Year award for her Sarah Palin impression on SNL. In 2010, Fey was awarded the Mark Twain Prize for American Humor, becoming the youngest recipient of the award.