Eric Anthony Duncan (born December 7, 1984, in Florham Park, New Jersey) is a retired American baseball player. Considered an excellent high school baseball player, Duncan was chosen by the New York Yankees in the first round of the 2003 Major League Baseball (MLB) Draft, and became one of the best prospects in baseball. However, injuries and ineffectiveness in minor league baseball prevented Duncan from reaching MLB.
Duncan attended Seton Hall Preparatory School in West Orange, New Jersey, which is also the alma mater of the Boston Red Sox starting pitcher Rick Porcello.
Duncan was selected by the Yankees in the first round (27th overall) of the 2003 Major League Baseball Draft. Prior to the 2005 season, Baseball America named Duncan the Yankees' 2005 top prospect, and the 36th best prospect in baseball. Prior to the 2006 season, Baseball America ranked him the 86th best prospect in baseball.
Duncan was drafted as a third baseman, but was converted into a first baseman while in the Yankee organization, due to the long-term contract of Yankee Alex Rodriguez. However, Duncan began to struggle when he reached Triple-A.
After the 2009 season, the Yankees released Duncan. He spent the 2010 season in the Atlanta Braves organization, playing for the Double-A Mississippi Braves. Duncan signed a minor league contract with an invitation to 2011 spring training with the Colorado Rockies. He was released on April 4. On April 19, Duncan was signed to a minor league contract by the St. Louis Cardinals and assigned to Double-A Springfield. He signed a minor league contract with the Kansas City Royals on November 16, 2011 and was assigned to the Double A Northwest Arkansas Naturals (Texas League). He suffered a torn quadriceps during spring training in 2012 and returned to the field on May 5. In July 2012, he announced his voluntary retirement.2003 - 1st Team High School All-American IF
2004 - Midwest League All-Star 3B
2006 - Arizona Fall League All-Star 3B
2006 - Arizona Fall League MVP
Following his retirement, Duncan became a volunteer coach for the Seton Hall Pirates of Seton Hall University. He is also a student at Seton Hall, majoring in political science.
In 2015, the Staten Island Yankees named Duncan as their hitting coach, he returned to the same position in 2016. In 2017, Duncan was promoted to the Tampa Yankees as their hitting coach for the 2017 season.