The 1964 race riots in Singapore were a series of communal disturbances and racial conflicts between the Malay and Chinese communities in Singapore. They occurred just months after Singapore's merger with Malaysia on 16 September 1963 and were regarded as the most serious and prolonged racial violence in the nation's post-war history. Although 1964 was marked by general racial tension, the term specifically refers to two major outbreaks on 21 July and 2 September, particularly the former, which was more severe and resulted in 23 deaths and 454 injuries.
The riots had significant political consequences and raised concerns about Malaysia's racial stability following Singapore's inclusion.