Ajil (est. pop. (2000 census): 1,842) is a small town in the Penghulu Diman commune in Hulu Terengganu District of Terengganu, Malaysia.
The town is located 35 km south of Kuala Terengganu, the state capital, near the intersection of Federal Route 14 (Terengganu's main interior highway) and Federal Route 106 (the main highway to Kuala Berang). Ajil is also home to a migrant detention centre where illegal immigrants are detained.
- Dept. of Urban and Rural Planning, Terengganu State Government. Rancangan Struktur Negeri Terengganu 2005-2015 (Malay), 2005
- "Malaysia Detention Profile". Global Detention Project. Archived from the original on 2 April 2015. Retrieved 1 April 2015.