Thomas Darwin Eshelman (born June 20, 1994) is an American former professional baseball pitcher and current pitching coach in the San Diego Padres organization. He made his Major League Baseball (MLB) debut with the Baltimore Orioles in 2019. He played college baseball for the Titans of California State University, Fullerton. The Houston Astros selected Eshelman in the 2015 MLB draft, and traded him to the Philadelphia Phillies after the 2015 season. He was traded to the Baltimore Orioles during the 2019 season.