Jeff Blumenkrantz (born June 3, 1965 in Long Branch, New Jersey) is an actor, composer and lyricist.
Born and raised in New Jersey, Blumenkrantz is a graduate of Northwestern University School of Communication. His acting credits include roles in such Broadway productions as Into the Woods (1987), The Threepenny Opera (1989), Damn Yankees (1994), How to Succeed in Business Without Really Trying (1995), and A Class Act (2001), as well as appearances in such television shows as Will & Grace, 30 Rock, The Good Wife, Ugly Betty, Just Shoot Me!, and Law & Order.
In 2000, noted Broadway actress and recording artist Audra McDonald included Blumenkrantz's song "I Won't Mind" on her CD, How Glory Goes. This lullaby (with lyrics by Annie Kessler and Libby Saines) has become a staple of McDonald's repertoire. Blumenkrantz also contributed a piece to The Seven Deadly Sins, a song cycle commissioned by Carnegie Hall for the singer. His comic song, "My Book," addressed the sin of sloth.
In 2003, Blumenkrantz was nominated for a Best Original Score Tony Award for his work on Urban Cowboy, a nomination he shared with Jason Robert Brown and twenty-eight others.