Association football, known more popularly as football, is considered the national sport of Singapore. The country is home to the Football Association of Singapore (FAS), the oldest football association in Asia with its roots coming from The Football Association in England. The national teams include the men's, women's and youth. Despite the country having a relatively small population pool, it has generally punched above its weight by successively producing squads that has fiercely competed with much larger and more populated countries in both club and international football.

The Singapore national football team represents Singapore in the senior men's international football. It is organised by the Football Association of Singapore (FAS), the governing body of football in Singapore, which is affiliated with the Asian Football Confederation (AFC) and the regional ASEAN Football Federation (AFF). The team's colours are red and white. Singapore are colloquially known as "The Lions".