The opening ceremony of the 2025 SEA Games took place on 9 December 2025 across Bangkok, began at 19:00 ICT (12:00 UTC) and ended at 21:30 ICT (14:30 UTC). The Games was formally opened by the king of Thailand, Vajiralongkorn. The ceremony marked the decades of the 1975, 1985 and 1995 Southeast Asian Games.
Preparations
Proceedings Back to the origin (สู่จุดเริ่มต้น)
Ignite the games (ปลุกพลังสู่การแข่งขัน)
We Are One – We are connected by the sea (สายน้ำหลอมรวมดวงใจเป็นหนึ่งเดียว)
One spirit (จิตวิญญาณแห่งความเป็นหนึ่ง)
Blooming of one victory (มิตรภาพคือชัยชนะ)
Parade of nations +OrderTeamThaiMissFlagbearer(s)Sport(s)1บรูไนSaffron Maya Snook(Miss Global Thailand 2025)Walid LachkarNur Hafizah Haji Abdul SidekWushuNetballhttps://www.pelitabrunei.gov.bn/Lists/Berita%202018/NewDisplayForm.aspx?ID=634332กัมพูชาVanessa Wenk(Miss Intercontinental Thailand 2025)Kongmona JassicaVa MithonaJujutsuTaekwondo3อินโดนีเซียAnchilee Scott-Kemmis(Miss Universe Thailand 2021)Robi SyianturiMegawati Hangestri PertiwiAthleticsVolleyballhttps://www.antarafoto.com/view/2686651/athlete-preparations-ahead-of-the-opening-of-the-2025-sea-games4ลาวSireethorn Leearamwat(Miss International 2019)Vilasack LathsavongPetanque5มาเลเซียChonnikarn Supittayaporn(Miss Thailand 2023)Andre Anura AnuarAaliyah Yoong HanifahAthleticsWater skiinghttps://theedgemalaysia.com/node/7854506พม่าKirana Yuthong(2nd runner-up Miss Thailand 2025)Aung Cho MyintThet Htar ThuzarSepak takrawBadminton7ฟิลิปปินส์Anntonia Porsild(Miss Supranational 2019, 1st runner-up Miss Universe 2023)Bryan BagunasAlexandra EalaVolleyballTennishttps://sports.inquirer.net/651244/sea-games-alex-eala-bryan-bagunas-named-ph-flagbearers8สิงคโปร์Chatnalin Chotjirawarachat(Miss Intercontinental 2023)Noah LimYeo Jia MinJu-jitsuBadmintonhttps://www.channelnewsasia.com/sport/sea-games-opening-ceremony-bangkok-message-unity-55701319ติมอร์-เลสเตPanida Kernjinda(Miss Thailand 2024)Jolanio GuterresAna da Costa da SilvaSwimmingTaekwondo10เวียดนามNicha Poonpoka(2nd runner-up Miss Universe Thailand 2023)Lê Minh ThuậnLê Thanh ThúyKarateVolleyballhttps://www.vietnam.vn/en/2-van-dong-vien-cao-tren-1-8m-cam-co-cho-doan-the-thao-viet-nam-tai-sea-games-3311ประเทศไทยSuchata Chuangsri(Miss World 2025)Kunlavut VitidsarnJanjaem SuwannaphengBadmintonBoxing
Torch relay
Music performers Violette Wautier TWOPEE F.Hero Prajya Meebumrung Pannasit Sukahotu BamBam Jespipat Tilapornputt Suradet Piniwat Longshi Lee Panuwat Sopradit Naret Promphaopun Pruk Panich Teetut Chungmanirat
Anthems Thai National Anthem - Phleng Chat Thai Sansoen Phra Barami - Thai Royal Anthem SEAGF Anthem
Dignitaries in attendance Host nation King Vajiralongkorn Queen Suthida Prime Minister Anutin Charnvirakul Thananon Niramit, Partner of the Prime Minister Deputy Prime Minister Thamanat Prompow Atthakorn Sirilatthayakorn, Minister of Tourism and Sports Natthriya Thaweevong, Permanent Secretary of Tourism and Sports Tharapong Malakam, Permanent Secretary of Defence Atthasit Samphantharat, Permanent Secretary of Interior Gongsak Yodmani, Governor of the Sports Authority of Thailand Patama Leeswadtrakul, IOC Member Pimol Srivikorn, President of the National Olympic Committee of Thailand Chadchart Sittipunt, Governor of Bangkok Narit Niramaiwong, Governor of Chonburi Rattasart Chidchu, Governor of Songkhla
Foreign dignitaries Prince Abdul Mateen of Brunei Princess Anisha Rosnah of Brunei Princess Azemah Ni'matul Bolkiah of Brunei Pengiran Muda Bahar of Brunei Prince Jefri Bolkiah of Brunei
Southeast Asian Games Federation Chaiyapak Siriwat, President of the Southeast Asian Games Federation
References