Joseph Greenspan (born September 12, 1992) is an American soccer player who plays as a defender.

[1] Greenspan spent his entire college career at the United States Naval Academy.

[2] He initially put his soccer career on hold due to military service obligations but came to an agreement with the Navy and Rapids in June 2015, allowing him to fulfill his military requirements and play for the Rapids.

[3] Greenspan made his professional debut in a 4–1 win in a Lamar Hunt U.S. Open Cup over the Colorado Springs Switchbacks.

[4] Greenspan was traded to MLS expansion club Minnesota United FC following the 2016 season.