The 1978 NCAA Division I baseball season, play of college baseball in the United States organized by the National Collegiate Athletic Association (NCAA) began in the spring of 1978. The season progressed through the regular season and concluded with the 1978 College World Series. The College World Series, held for the thirty-second time in 1978, consisted of one team from each of eight regional competitions and was held in Omaha, Nebraska at Johnny Rosenblatt Stadium as a double-elimination tournament. Southern California claimed the championship for the eleventh time.