The Spain national U-20 basketball team is the representative for Spain in international basketball competitions, and it is organized and run by the Spanish Basketball Federation. The team represents Spain at the FIBA Europe Under-20 Championship. It represents Spain in international under-21 and Under-20 (under age 21 and under age 20) men's basketball competitions.

Spania U20 er det spanske U20-landslaget i basketball for herrer. Laget deltar i FIBA Europe U20 Championship, som arrangeres annethvert år. Spania U20 har vunnet mesterskapet to ganger, i 1990 og 2011.