Nguyễn Quang Thùy (chữ Hán: 阮光垂; died 1802) was a Vietnamese prince alive during the Tây Sơn dynasty.
After Toản ascended the throne in 1792, Thùy was granted the royal title Khanh công (康公, "Duke of Khanh"), and tasked with mobilising troops and managing civil and military affairs in Tonkin.
Thùy arrested Ngô Văn Sở, a political ally of Tuyên, and transferred him to Phú Xuân.
The young emperor Nguyễn Quang Toản fled to Thăng Long, and lived in Thùy's house.
In January 1802, Thùy attacked Lũy Thầy (a strategic wall built by Đào Duy Từ, in present day Quảng Bình Province), but was defeated by Nguyễn Ánh, and retreated to Nghệ An.