James C. Metzger (born February 18, 1959) is an American businessman and philanthropist. He is the founder, chairman and CEO of The Whitmore Group, Ltd., a Long Island insurance brokerage and financial services firm that opened during 1989. Metzger is a former All-American lacrosse player at Hofstra University and an multi-sport athlete at Half Hollow Hills High School East (Half Hollow Hills Central School District) in Dix Hills. His high school lacrosse jersey (#21) and university lacrosse jersey (#56) have been retired at both schools. His football jersey (#21) also has been retired by his high school.