The SEA Games owes its origins to the
South East Asian Peninsular Games or
SEAP Games (abbreviated as
SEAPG). On 22 May 1958, delegates from the countries in Southeast Asian Peninsula attending the
Asian Games in Tokyo, Japan had a meeting and agreed to establish a sports organization. The SEAP Games was conceptualized by Luang Sukhum Nayapradit, then vice-president of the
Thailand Olympic Committee. The proposed rationale was that a regional sports event will help promote co-operation, understanding, and relations among countries in the Southeast Asian region. Six countries,
Burma (now
Myanmar),
Cambodia,
Laos,
Malaya (now
Malaysia),
Thailand and the
Republic of Vietnam (South Vietnam) were the founding members. These countries agreed to hold the Games biennially in June 1959 and the SEAP Games Federation Committee was formed thereafter. In December 2025, the president of the
Indonesian Olympic Committee, Raja Sapta Oktohari, proposed to the Southeast Asian Games Federation to broaden the scope of the event by creating a parallel event he called SEA Games Plus, which would be held in even-numbered years. He argued that introducing this would support athletes in bridging the gap between regional and international events, focus on holding more Olympic sports over regional sports, and eliminating the possibility for host nations to tamper with the SEA Games charter to maximise medal hauls. He said that the Indonesian Olympic Committee had been in talks with several National Olympic Committees outside of Southeast Asia in South Asia and Oceania to participate, such as
Bhutan,
Australia,
New Zealand, and
Fiji. This plan was confirmed and clarified by the
Philippine Olympic Committee President
Abraham Tolentino on 1 January 2026. The event, known as the
SEA Plus Youth Games, was clarified to be a youth multi-sport tournament similar to the
Youth Olympic Games for athletes aged 17 and under, and will involve all nine Southeast Asian nations, as well as one guest country from another Asian sub-region. ==Symbol==