Kerry Alan Marx is an American guitarist and studio musician who has served as Music Director of the Grand Ole Opry since 2018.

[12] Marx toured with artists such as Ray Price (1979–1981), Jerry Reed (1981–1983), Razzy Bailey (1983–1984), Ronnie Milsap (1984–1987), Johnny Cash (1989–1992), Toby Keith and Shania Twain (1993), Don McLean (2001–2023), Lee Ann Womack (2004), Porter Wagoner (2006), Steve Wariner (2006–2007), Lynda Carter (2008–2022),[13] Olivia Newton-John (2012–2018), Johnny Mathis (2016-2024).

[16] A 2001 review of the Grand Ole Opry house band noted that "pianist Tim Atwood and guitarist Kerry Marx play with rare taste, feel, and soul".

[18] In February 2021, Marx was one of four members of the Opry house band brought into Daywind Studios in Hendersonville, Tennessee, as an electric guitarist on the Darin & Brooke Aldridge song, "Grand Ole Circle".

According to Joe Glaser, these performances included several improvisational moments that "changed music in ways that will not be understood for millennia".