The Mỹ Đình National Stadium is a multi-purpose stadium in Nam Từ Liêm district, Hanoi, Vietnam. It has a capacity of 40,192 seats and is the centerpiece of Vietnam's National Sports Complex. It was officially opened in September 2003 and was the main venue for the Southeast Asian Games later that year, hosting the opening and closing ceremony as well as the men's football and athletics events.

The 2003 Southeast Asian Games, officially known as the 22nd Southeast Asian Games, SEA Games 22 and also known as Vietnam 2003, was a Southeast Asian multi-sport event held from 5 to 13 December 2003 in Hanoi, Vietnam. This was the first time that Vietnam had staged the SEA Games, and it saw East Timor, which had just gained independence in 2002; although not being an ASEAN member and despite its geographical location closer to the Pacific archipelago than the Asian continent, making its debut at the games.