Ajil is a state constituency in Terengganu, Malaysia, that has been represented in the Terengganu State Legislative Assembly.
The state constituency was first contested in 1995 and is mandated to return a single Assemblyman to the Terengganu State Legislative Assembly under the first-past-the-post voting system.
According to the gazette issued on 30 March 2018, the Ajil constituency has a total of 16 polling districts.