Ajloun, also spelled Ajlun, is the capital town of the Ajloun Governorate, a hilly town in the north of Jordan, located 76 kilometers north west of …Ajloun, also spelled Ajlun, is the capital town of the Ajloun Governorate, a hilly town in the north of Jordan, located 76 kilometers north west of Amman. It is noted for its impressive ruins of the 12th-century Ajloun Castle.