Victor Jay Garber, (born March 16, 1949) is a Canadian-American actor and singer. Known for his work on stage and screen, he has been nominated for three Gemini Awards, four Tony Awards, and six Primetime Emmy Awards. In 2022, he was made an Officer of the Order of Canada.

Garber originated roles in the Broadway productions of Sweeney Todd: The Demon Barber of Fleet Street in 1979, Noises Off in 1983, Lend Me a Tenor in 1989, Arcadia in 1995 and Art in 1998. He's received four Tony Award nominations for his performances in the play Deathtrap in 1978, the Neil Simon musical Little Me in 1982, the comedic play Lend Me a Tenor in 1989 and the musical comedy revival of Damn Yankees in 1994.

He made his film debut as Jesus Christ in the musical Godspell (1973). He has also been nominated for three Screen Actors Guild Awards along with the casts of the critically acclaimed films Titanic (1997), Milk (2008), and Argo (2012) winning for the latter. Other notable films include Sleepless in Seattle (1993), The First Wives Club (1996), Legally Blonde (2001), Sicario (2015), Dark Waters (2019), and Happiest Season (2020).

On television, Garber is best known as Jack Bristow in the ABC series Alias (2001 to 2006) for which he received three consecutive Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series nominations. He received further Emmy nominations for his portrayal of Sidney Luft in Life with Judy Garland: Me and My Shadows (2001) and for his guest roles in the sitcoms Frasier in 2001 and Will & Grace in 2005. He has since joined the Arrowverse appearing as Martin Stein / Firestorm in the superhero series The Flash (2015–2017) and Legends of Tomorrow (2016–2017).