The Christian Democratic Party (CDP) was a political party in Samoa. The party was founded in February 1985 by the supporters of former Prime Minister Tupuola Taisi Tufuga Efi.[1]: 192 At the 1985 election the party won only 15 of 47 seats, but was able to form a coalition government in December 1985 after 11 Human Rights Protection Party MPs crossed the floor to vote against the budget of then-Prime Minister Tofilau Eti Alesana. Va'ai Kolone became Prime Minister.[1]: 193 While apparently retaining a majority after the 1988 election, the party lost power after the defection of Tanuvasa Livigisitone to the HRPP.[1]: 193
On April 8, 1988 the party merged with the Samoa National Party to form the Samoan National Development Party.[1]: 193