Warren Neal “Trey” Moore III (born October 2, 1972) is an American former professional baseball pitcher. He pitched parts of three seasons in Major League Baseball (MLB), between 1998 and 2001, for the Montreal Expos and Atlanta Braves. He also played three seasons in the Nippon Professional Baseball (NPB), from 2002 until 2004, for the Hanshin Tigers and Orix BlueWave.
A native of Houston, Texas, Moore attended Keller High School and Texas A&M University. In 1993, he played collegiate summer baseball with the Chatham A's of the Cape Cod Baseball League. He was selected by the Seattle Mariners in the second round of the 1994 MLB Draft.