The New Constitutional Liberal Party , most commonly known as Neo Destour, was a Tunisian political party founded in 1934 in Dar Ayed, the house of independence activist Ahmed Ayed, by a group of Tunisian nationalist politicians during the French protectorate. It originated from a split with the Destour party.
Led by Habib Bourguiba, Neo Destour became the ruling party upon Tunisian independence in 1956. In 1964, it was renamed the Socialist Destourian Party.