Tierney Sutton (born June 28, 1963) is an American jazz singer who has received 8 Grammy Award nominations.

Sutton was born in Omaha, Nebraska, but grew up in Milwaukee, WI. She holds a BA from Wesleyan University in Middletown, Connecticut and also attended the Berklee College of Music in Boston, Massachusetts.

For over 20 years, she has fronted The Tierney Sutton Band featuring pianist Christian Jacob, bassists Trey Henry and Kevin Axt, and drummer Ray Brinker. The band is an incorporated unit and makes all musical and business decisions together. They tour throughout the world and have headlined at Carnegie Hall, The Hollywood Bowl, and Jazz at Lincoln Center.

In 2012, Sutton embarked on a series of projects with collaborators outside of the Tierney Sutton band. Her 2013 release "After Blue" , a reimagining of the music of Joni Mitchell, featured flautist Hubert Laws, vocalist Al Jarreau, keyboardist Larry Goldings, cellist Mark Summer and drummer Peter Erskine. It earned Sutton her 5th consecutive Grammy nod for "Best Jazz Vocal Album"

In 2016 Tierney and The Tierney Sutton Band composed and performed the score of Clint Eastwood's Box Office hit "Sully". The score features orchestrations and compositions by TSB pianist Christian Jacob as well as the end title song "Flying Home" with music by Eastwood and lyrics by Sutton and JB Eckl.

For eleven years, Sutton taught in the Jazz Studies Department at the University of Southern California. In 2008, she became the Vocal Department Chair at Los Angeles Music Academy in Pasadena, California.

She has been a Baha'i since 1981 and explains her band's arranging style as "based on the principle of consultation – the band is very much run on Baha'i principles. There is very much a sense that what we do is essentially a spiritual thing and everyone's voice needs to be heard."

Paris Sessions featuring guitarist Serge Merlaud and bassist Kevin Axt (Varèse Sarabande, 2014) received a Grammy Award nomination for Best Jazz Vocal Album in 2014, while The Sting Variations was nominated in the same category in 2016.