Benjamin N. Lovejoy (born February 20, 1984 in Concord, New Hampshire) is a professional ice hockey defenseman currently with the Pittsburgh Penguins of the National Hockey League.

Ben Lovejoy played high school hockey for prep school Deerfield Academy in Deerfield, Massachusetts. The program has turned out numerous Division 1 standouts over the past two decades, many of whom have gone on to continue their playing careers in the NHL.

Ben Lovejoy was offered an NHL contract by Montreal during his third year of college. Lovejoy turned down the offer so that he could finish school and grow more as a player. Undrafted, Lovejoy played one year for Boston College and three years for Dartmouth College of the NCAA. Lovejoy also played lacrosse at Dartmouth, earning All-Ivy honors in 2006. He graduated from Dartmouth with the class of 2007. He began his professional career a few days after graduation and played five games with the Norfolk Admirals of the American Hockey League to end the 2006–07 season. That summer, Lovejoy signed an AHL contract with the Wilkes-Barre/Scranton Penguins. Ben Lovejoy scored his first pro goal at home during the Saint Patrick's Day game. Lovejoy ended the season with 20 points (2 goals, 18 assists) appearing in 72 games and a plus-16 rating.