The light flyweight boxing competition at the 2004 Summer Olympics in Athens was held from 18 to 29 August at Peristeri Olympic Boxing Hall.

Like all Olympic boxing events, the competition was a straight single-elimination tournament.

This event consisted of 29 boxers who have qualified for the competition through various tournaments held in 2003 and 2004.

Both semi-final losers were awarded bronze medals.

[1] Punches scored only if the white area on the front of the glove made full contact with the front of the head or torso of the opponent.