General elections were held in Luxembourg on 7 June 1964. Despite receiving fewer votes than the Luxembourg Socialist Workers' Party, the Christian Social People's Party remained the largest party, winning 22 of the 56 seats in the Chamber of Deputies.
a The percentage of votes is not related to the number of votes in the table, as voters could cast more votes in some constituencies than others, and is instead calculated based on the proportion of votes received in each constituency.