Tonga at the 2004 Summer Olympics

One Tongan archer qualified for the men's individual archery through a tripartite invitation.

Athlete	Event	Ranking round		Round of 64	Round of 32	Round of 16	Quarterfinals	Semifinals	Final / BM
		Score	Seed	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Opposition Score	Rank
Sifa Taumoepeau	Men's individual	563	62	Galiazzo (ITA) L 122–156	did not advance

Tongan athletes have so far achieved qualifying standards in the following athletics events (up to a maximum of 3 athletes in each event at the 'A' Standard, and 1 at the 'B' Standard).^[2][3]

Men

Track & road events

Women

Field events

Key

• Note–Ranks given for track events are within the athlete's heat only
• Q = Qualified for the next round
• q = Qualified for the next round as a fastest loser or, in field events, by position without achieving the qualifying target
• NR = National record
• N/A = Round not applicable for the event
• Bye = Athlete not required to compete in round

Tonga sent a single boxer to Athens. Ma'afu Hawke lost 11-30 to American Jason Estrada.^[4]

Athlete	Event	Round of 16	Quarterfinals	Semifinals	Final
		Opposition Result	Opposition Result	Opposition Result	Opposition Result	Rank
Ma'afu Hawke	Super heavyweight	Estrada (USA) L 11–30	did not advance

Tonga has qualified a single judoka.

Athlete	Event	Round of 32	Round of 16	Quarterfinals	Semifinals	Repechage 1	Repechage 2	Repechage 3	Final / BM
		Opposition Result	Opposition Result	Opposition Result	Opposition Result	Opposition Result	Opposition Result	Opposition Result	Opposition Result	Rank
Akapei Latu	Men's −73 kg	Yagoubi (ALG) L 0000–1111	did not advance