Indonesia participated at the 2025 SEA Games in Bangkok and Chonburi, Thailand from 9 to 20 December 2025. The Indonesian contingent consisted of 1,021 athletes.
Medal summary
Medal by sportMedal by dateMedalistsDemonstration Sports medalists The following Indonesia competitors won medals at the demonstration events. ==Competitors==
Competitors
The following is the list of the number of competitors participating at the Games per sport/discipline. : Demonstration sports ==Archery==
Archery
;Recurve ;Compound ==Artistic swimming==
Athletics
Men's ;Track and road events ;Field events Women's ;Track and road events ;Field events ==Badminton==
Badminton
Badminton Association of Indonesia sent 20 athletes to compete in the 2025 SEA Games consisting of 10 male athletes and 10 female athletes. ;Men ;Women ;Mixed ==Basketball==
Basketball
;Summary ;Rosters Men 5x5 '''Women's 5x5''' {{FIBA roster header|team=Indonesia women's national basketball team - 2025 SEA Games roster 3x3 ==Billiards and snooker==
Billiards and snooker
BilliardsSnooker ==Baseball==
Cricket
The Indonesian Cricket Association sent both men's and women's team, a total of 30 athletes consisting of 15 males and 15 females each. Squads == Cycling ==
Cycling
;BMX ;Mountain biking ;Track ;Road ==Diving==
Esports
Mobile Legends: Bang Bang FC Online Free Fire Players ==Equestrian==
Football
Indonesia will compete in both men's and women's football. Men's tournament ;Team roster ;Group play Women's tournament ;Team roster ;Group play ==Ice skating==
Field hockey Hockey5s Squads Indoor hockey Ice hockey The Indonesia Ice Hockey Federation send 23 male athletes to participate in the ice hockey men's tournament. Squad ==Jet Skiing==
Ju-jitsu
;Fighting ;Ne-waza == Kabaddi ==
Karate
;Kumite ;Kata == Kickboxing ==
Muaythai
;Combat ;Waikru ==Open water swimming==
Pencak silat
SeniTanding ;Men ;Women ==Pétanque==
Polo
Indonesia send an 8-man polo team to compete in the mixed 2–4 goals and 4–6 goals. ==Rowing==
Rugby sevens
The Indonesia Rugby Football Union only send their women's team. Squad ==Sailing ==