Gregory Walter Olsen (born March 11, 1985) is an American football tight end for the Seattle Seahawks of the National Football League (NFL). He played college football at the University of Miami and was drafted by the Chicago Bears in the first round of the 2007 NFL Draft. He holds an NFL record as the first tight end in league history to record three consecutive seasons with 1,000 receiving yards.
Olsen grew up in Wayne, New Jersey, and attended Wayne Hills High School, where he played football and basketball under his father, Chris Olsen Sr. As a high school senior he was one of three finalists for the Gatorade Player of the Year award, along with former Miami Hurricane teammate Kyle Wright. He was a USA Today First-Team All-American as a senior in 2002. He finished his career with 73 receptions for 1,474 yards, and a school-record 27 touchdowns. He played in the 2003 U.S. Army All-American Bowl.