The 1955 NCAA baseball season, play of college baseball in the United States organized by the National Collegiate Athletic Association (NCAA) began in the spring of 1955. The season progressed through the regular season and concluded with the 1955 College World Series. The College World Series, held for the ninth time in 1955, consisted of one team from each of eight geographical districts and was held in Omaha, Nebraska at Johnny Rosenblatt Stadium as a double-elimination tournament. Wake Forest claimed the championship.^[1]

This is a partial list of conference champions from the 1955 season. Each of the eight geographical districts chose, by various methods, the team that would represent them in the NCAA Tournament. 12 teams earned automatic bids by winning their conference championship while 13 teams earned at-large selections.^[1][2]

The following is an incomplete list of conference standings:

The 1955 season marked the ninth NCAA Baseball Tournament, which consisted of the eight team College World Series. The College World Series was held in Omaha, Nebraska. The eight teams played a double-elimination format, with Wake Forest claiming their first championship with a 7–6 win over Western Michigan in the final.^[1]