General elections were held in Costa Rica on 8 February 1948. Otilio Ulate Blanco of the National Union Party won the presidential election with 55.3% of the vote, although the elections were deemed fraudulent and annulled by Congress, leading to the Costa Rican Civil War later that year. Following the war, the results of the parliamentary election were also annulled. Voter turnout was 43.8% in the vice-presidential election and 49.2%.