Taissa Farmiga is an American actress, and the younger sister of Academy Award nominee Vera Farmiga, who is 21 years her senior. She was born in Readington Township, New Jersey, USA, to Ukrainian-born parents Michael and Lubomyra (Spas) Farmiga.

Unlike her older sister, Taissa initially had no interest in becoming an actor. However, she was persuaded to make her acting debut in Vera's directorial debut film Higher Ground (2011). Also playing the lead, Vera wanted to cast someone who was physically similar to play the younger version of her character. Taissa was 15 years old and, apart from a second grade school play, had no previous acting experience. The film premiered at the Sundance Film Festival, and Taissa's performance received critical acclaim. It was after Sundance that Taissa officially decided to pursue acting. At age 16, she landed a leading role as Violet Harmon in the Fox horror series American Horror Story (2011).

Farmiga has since starred in films from a range of genres, including Sofia Coppola's crime film The Bling Ring (2013), Jorge Dorado's psychological thriller Anna (2013), Todd Strauss-Schulson's horror comedy The Final Girls (2015), Hannah Fidell's romantic drama 6 Years (2015), Ti West's western In a Valley of Violence (2016), and Warren Beatty's comedy-drama Rules Don't Apply (2016).