The 2003 Atlantic 10 Conference Baseball Championship was held at Dodd Stadium in Norwich, CT from May 15–17 (preliminaries) and at Pitt Field in Richmond, VA on May 22 and 24 (championship series). It featured the top two regular-season finishers of each six-team division, plus the next two best finishers. Top-seeded Richmond defeated Massachusetts in the title game to win the tournament for the first time, earning the Atlantic 10's automatic bid to the 2003 NCAA Tournament.