Ryan Daniel Martinie is an American musician, best known as the bassist for heavy metal band Mudvayne.

Mudvayne is an American heavy metal band formed in Peoria, Illinois, in 1996. Known for their sonic experimentation, face and body paint, masks and uniforms, the band has sold over six million records worldwide, including nearly three million in the United States. The group consists of guitarist Greg Tribbett, drummer Matthew McDonough, lead vocalist Chad Gray, and bassist Ryan Martinie. The band became popular in the late-1990s Peoria underground music scene, and they found success with the single "Dig" from their debut album L.D. 50 (2000). After releasing four more albums and touring relentlessly for nearly a decade, Mudvayne went on hiatus in 2010. They reunited in 2021 and continue to perform live.