Brett David Harper (born July 31, 1981) is an American former first baseman in Minor League Baseball. He is the son of former Major Leaguer Brian Harper.

Harper was drafted by the New York Mets in the 45th round of the 2000 MLB Draft out of Scottsdale Community College. He began his professional baseball career with the Kingsport Mets in 2001 and remained in the Mets farm system through 2007, rising as high as Double-A, where he played with the Binghamton Mets from 2004–2007. In 2004 with the St. Lucie Mets he was named the team's MVP and named to the mid-season Florida State League All-Star team, though he was unable to participate due to his promotion to Binghamton. In 2005, he finished third among all minor leaguers in home runs with 36 and was again named to the FSL All-Star team. He also finished second in the FSL's home run derby.

In 2007 with Binghamton, Harper was named to the Eastern League Mid-season and post-season All-Star teams while hitting .296 with 24 home runs and 88 RBIs.

He was invited to spring training by the San Francisco Giants in 2008 and spent the season with the Triple-A Fresno Grizzlies, hitting .315 with 20 home runs and 59 RBIs.

Harper began 2009 with the Las Vegas 51s in the Toronto Blue Jays system and hit .274 with 15 home runs in 79 games before he was released by the Blue Jays. He was quickly signed by the Los Angeles Dodgers and assigned to the Albuquerque Isotopes.

In June 2010 Harper signed a contract with the Yokohama BayStars for the remainder of the 2010 season with a club option for 2011.^[1]

He signed with the Diablos Rojos del México of the Mexican Baseball League for the 2016 season, then was traded to the Guerreros de Oaxaca on April 19, 2016.

Harper is currently Head Coaching Instructor of Canes Baseball AZ, a youth club baseball program in Scottsdale, Arizona.^[2]