Luis Antonio Castillo (born September 12, 1975) is a Dominican professional baseball second baseman.
He played in Major League Baseball for the Florida Marlins, New York Mets, and Minnesota Twins from 1996 through 2010.
Castillo is a three-time All-Star, three-time Gold Glove winner, and won the World Series with the Marlins in 2003.
He is also the only player who played for the Marlins in both of their World Series winning seasons who did not get traded in between the two seasons.