Jainal Antel Sali Jr. (June 1, 1964 – January 16, 2007) was a Filipino militant who was a senior leader of Abu Sayyaf, an Islamist terrorist organization affiliated with Al Qaeda.

Being on the social or political division line, the neighboring Basilan island has seen some of the fiercest fighting between government troops and the Muslim separatist group Abu Sayyaf through the early 2000s.

When Sali was still a pre-teen, in the early 1970s, the Moro National Liberation Front (MNLF) was the main Muslim rebel group fighting in the Basilan region of the southern Philippines.

After the late 1980s Abdurajik Abubakar Janjalani returned home to Basilan from the Soviet–Afghan War to establish his own offshoot group in the southern Philippines, out of members of the extant MNLF.

On January 16, 2007, Sali was killed during a gunfight with Special Forces soldiers in a village about 950 kilometers (590 miles) south of Manila.