Elizabeth Stamatina "Tina" Fey (; born May 18, 1970) is an American actress, comedian, writer, producer and playwright. She is best known for her work on the NBC sketch comedy series Saturday Night Live (1997–2006) and for creating the acclaimed comedy series 30 Rock (2006–2013) and Unbreakable Kimmy Schmidt (2015–present). Fey is also known for her work in film, with her most notable appearances including starring roles in Baby Mama (2008), Date Night (2010), Muppets Most Wanted (2014), Sisters (2015), and Whiskey Tango Foxtrot (2016).

Fey broke into comedy as a featured player in the Chicago-based improvisational comedy group The Second City. She then joined SNL as a writer, later becoming head writer and a performer, known for her position as co-anchor in the Weekend Update segment and, later, for her 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 Netflix comedy series Unbreakable Kimmy Schmidt. Fey created the musical adaptation Mean Girls, which premiered on Broadway in 2018, and earned her a Tony Award nomination.

Fey has received 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-ever recipient of the award.