General elections were held in Uruguay on 27 November 1994, alongside a double referendum. The result was a narrow victory for the Colorado Party, which won the most seats in the Chamber of Deputies and the Senate and received the most votes in the presidential election. They were the last presidential elections conducted under the Ley de Lemas system, which had been used for much of the 20th century and had been reinstituted in 1967. In 1996, a referendum amended the constitution to restrict each party to a single presidential candidate, effective from the 1999 elections.