The Samoan National Development Party (SNDP) was a political party in Samoa, and the country's main opposition party between 1988 and 2003.
The party was formed from a merger of the Christian Democratic Party (Samoa) and Samoa National Party in April 1988. At the 2001 election the party won 23.5% of popular votes and 13 out of 49 seats. The party was led by Tupua Tamasese Efi.
In 2003 the party merged with the Samoan United Independents Political Party to form the Samoan Democratic United Party, which replaced it as the main opposition party of Samoa. At the time of the merger, the party was led by Le Mamea Ropati.