The National Party of Scotland (NPS) was a centre-left political party in Scotland which was one of the predecessors of the current Scottish National Party (SNP). The NPS was the first Scottish nationalist political party, and the first which campaigned for Scottish self-determination. The NPS contested the 1929 and 1931 United Kingdom general elections, and a number of by-elections. In 1934 the NPS merged with the Scottish Party to form the Scottish National Party (SNP).