Kevin Paul Kadish (born 1971) is an American songwriter and record producer. He co-wrote, produced, and mixed the 2014 Diamond certified (10× platinum) single "All About That Bass" by Meghan Trainor which spent eight weeks at No. 1 on the Billboard Hot 100. In 2018, the song was named the 67th Biggest Hot100 Hit of All-Time, by Billboard, seated between The J. Geils Band's "Centerfold" (66) and John Lennon's "(Just Like) Starting Over" (68). The song received two nominations at the 57th Grammy Awards: Record of the Year and Song of the Year.

Born and raised in Baltimore, Kadish began playing guitar at the age of 13. After graduating from Owings Mills High School, he attended Berklee College of Music and studied Film Scoring. In 1991, Kadish transferred from Berklee to the University of Maryland, College Park where he designed his own major, Music Management, through the Individual Studies Department. He graduated in 1993 with a B.S. in Music Management.

Throughout the mid-1990s, Kadish toured the East Coast as a solo, acoustic artist, opening for Hall & Oates, Vertical Horizon, Dave Matthews Band, Jeff Beck, SR-71, Marcy Playground, Everything, and others.

In 1998, Kadish signed a development deal with Republic Records as a solo recording artist. He recorded with the producer Steve Addabbo at his Shelter Island Sound recording studio in New York City but no album was ever released.

In 2000, Kadish met record producer Matt Serletic who signed him as his "staff-writer" to Serletic's co-venture with Warner/Chappell Music. While under the wing of Serletic, Kadish co-wrote "Be There For You" and "Don't Fade Away" on Willie Nelson's album The Great Divide. He also co-wrote the songs "(There's Gotta Be) More to Life" and "Stuck" for Christian pop singer Stacie Orrico which appeared in the television shows The Simple Life and That's So Raven, as well as the animated film Robots. These two hits have been featured on several compilations which have sold nearly 11 million copies, cumulatively. In 2005, Kadish received an ASCAP Christian Music Award for Stacie Orrico's "(There's Gotta Be) More To Life" for being one of the most played songs on Christian radio.

Also in 2005, Kadish collaborated with singer/songwriter Jason Mraz on his sophomore album, Mr. A-Z, producing and writing both singles ("Wordplay" and "Geek in the Pink") For his work on this record, Kadish was nominated for Best Engineered Album at the 48th Grammy Awards in 2005.

In 2006, Kadish received the SOCAN award for his No.1 "Flawed Design" by Stabilo. In 2007, the song also received the SOCAN award for greatest number of plays on Canadian radio in 2006.

From 2007 to 2011, Kadish worked on and wrote on records with Gloriana, Miley Cyrus, Meat Loaf and Victoria Justice.