Belgium competed at the 1906 Intercalated Games in Athens, Greece.

16 athletes, all men, competed in 22 events in 7 sports.

[1] The rowing silver medal in the coxed pairs event over 1 mile is classed as a mixed team medal due to the Orban brothers using a Greek coxswain.

[2] The Orban brothers arrived in Greece without a coxswain, as they didn't know they required one, so they recruited the young Greek Theophilos Psiliakos [de].