Warren Morris debuted on April 5, 1999, playing for the Pittsburgh Pirates at Three Rivers Stadium; he played his final game on September 28, 2003, playing for the Detroit Tigers at Comerica Park.
Warren Bogle debuted on July 31, 1968 and played his final game on September 15, 1968.
Warren Brusstar debuted on May 6, 1977 and played his final game on October 3, 1985.
Warren Cromartie debuted on September 6, 1974 and played his final game on September 15, 1991.
Warren Fitzgerald debuted on June 4, 1891 and played his final game on June 8, 1892.
NBA player Markieff Morris played for Kansas.
NFL player Morris Claiborne played for LSU.
NFL player Stephen Morris played for Miami (Fla.).
NFL player Darryl Morris played for Texas State.
NFL player Alfred Morris played for Florida Atlantic.
NFL player Jeremiah Warren played for South Florida.
NFL player Pierre Warren played for Jacksonville State.
NFL player Greg Warren played for North Carolina.