James Foster Krivchenia (born December 8, 1988) is an American musician and producer, best known as the drummer of the indie rock band Big Thief. Krivchenia joined Big Thief in 2015 following his work with the band as a sound engineer. He later produced the band's fifth studio album, Dragon New Warm Mountain I Believe In You (2022), which received a nomination for Best Alternative Music Album at the 65th Annual Grammy Awards.
