Elizabeth Stamatina 'Tina' Fey (born May 18, 1970) is an American actress, comedian, writer, and producer, known for her work on the NBC sketch comedy series Saturday Night Live (SNL, 1997–2006), the critically acclaimed NBC comedy series 30 Rock (2006–2013), and such films as Mean Girls (2004), Baby Mama (2008), Date Night (2010), and Admission (2013). She has received eight Emmy Awards, two Golden Globe Awards, five Screen Actors Guild Awards, four Writers Guild of America Awards and was nominated for a Grammy Award for her autobiographical book Bossypants, which topped the The New York Times Best Seller list for five weeks.

She first broke into comedy as a featured player in the Chicago-based improv 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. In 2004, she adapted the screenplay Mean Girls in which she also co-starred.