Saad Abdallah Djaballah (Arabic: سعد عبدالله جابالله, born May 2, 1956 in Skikda) is an Algerian politician and leader of the Movement for National Reform  (Ḥarakat al-Iṣlāḥ al-Waṭaniyy, also known as the MRN and El-Islah), an Islamist political party that he led in a breakout from the Islamic Renaissance Party (al-Nahda), which he had created but lost control over. Djaballah stood for the presidency twice, in 1999 and 2004. In the former contest, he withdrew along with all other opposition candidates just hours before voting commenced. In 2004, he came in third place in the elections, with about 5 percent of the vote.
On November 25, 2011 Djaballah announced the formation of the new Justice and Development Front.