Jon Randall Stewart (born February 17, 1969) is an American producer, songwriter, and musician.

His career began as a guitarist for Emmylou Harris' Nash Ramblers with whom he won his first Grammy for their Live at the Ryman album in 1992. Between 1995 and 2005 Randall released three solo albums, What You Don't Know, Willin' and Walking Among the Living. He recorded a fourth album, Cold Coffee Morning, which was not released.

As a songwriter, Randall has had many notable cuts including "Whiskey Lullaby" recorded by Brad Paisley and Alison Krauss which won the 2005 CMA Song of the Year Award, and “Tin Man” by Miranda Lambert which won the 2018 ACM Song of the Year Award. He has also had cuts with Reba McEntire, Emmylou Harris, Maren Morris, Dierks Bentley, Kenny Chesney, Kip Moore, Brad Paisley, Scotty McCreery, Guy Clark, Little Big Town, Gary Allan and Travis Denning.

Randall produced Dierks Bentley's Up on the Ridge (2010) which was nominated for the 2011 Grammy Award for Best Country Album, and The Mountain (2018). Both albums were nominated for ACM and CMA Album of the Year. Randall's production on The Mountain's "Burning Man ft. Brothers Osborne" also earned him the 2019 ACM Award for Music Event of the Year. Other artists he has produced records for include: Dwight Yoakam, Jack Ingram, Pat Green, Nitty Gritty Dirt Band, Jessi Alexander, and Parker McCollum.

Randall has been nominated for 5 Grammy Awards, 5 Academy of Country Music Awards and 6 Country Music Association Awards. See Awards section below.

On February 19, 2021, Randall released his first single in over 15 years, "Keep On Moving", co-produced, engineered and mixed by Brandon Bell. On April 2, 2021, Randall released a four-track solo project called Neon Texas.