The Singapore Alliance Party, or sometimes known as just Singapore Alliance, was a coalition of political parties formed in July 1961 that contested several elections in Singapore, notably the 1955 Elections of Singapore and the 1963 Elections of Singapore. It consisted of the local branch of the United Malays National Organisation (UMNO), the Malay Union, the local chapters of the Malayan Chinese Association and the Malayan Indian Congress, and former Chief Minister Lim Yew Hock's Singapore People's Alliance (SPA).
This alliance was formalized on June 24, 1963 as the Singaporean component of the ruling Alliance Party in Malaya. Its campaign policy during the 1963 elections was similar to what the UMNO used in federal elections in Malaysia, and alleged the ruling People's Action Party (PAP) mistreated the Malays, one of the major races in Singapore. While the Singapore Alliance also supported merger within the Federation of Malaysia and was anti-Communist, it sought to extend the same model of communal politics on the mainland to Singapore. Unlike the then-left-leaning and socialist PAP, it was identified with the political right.