Delbert Bernard Unser is an American former professional baseball player. He played in Major League Baseball as a center fielder and utility player from 1968 to 1982, most prominently with the Philadelphia Phillies, where he was a member of the 1980 World Series winning team. He also played for the Washington Senators, Cleveland Indians, New York Mets and the Montreal Expos. His father was major league catcher Al Unser.

St. Teresa High School is a private, Roman Catholic high school in Decatur, Illinois. It is located in the Roman Catholic Diocese of Springfield in Illinois.