Qinnasrin (Arabic: قنسرين‎‎; Syriac: ܩܢܫܪܝܢ‎, Qinnašrīn), also known by numerous other romanizations and originally known as Chalcis-on-Belus (Latin: Chalcis ad Belum; Greek: Χαλκὶς, Khalkìs), was a historical town in northern Syria. The town was situated 25 km south west of Aleppo on the west bank of the Queiq River and was connected to Aleppo with a major road during Roman times. The ruins of Chalcis/Qinnasrin lie under the modern Syrian village of Al-Hadher (also written Hadir), the seat of the Hadher Nahiya, Mount Simeon District, Aleppo Governorate.