Bosra (Arabic: بصرى, also Bostra, Busrana, Bozrah, Bozra, Busra Eski Şam, Busra ash-Sham, Nova Trajana Bostra) is an ancient city administratively belonging to the Daraa Governorate in southern Syria. It is a major archaeological site and has been declared a UNESCO World Heritage Site.
The Roman theatre of Bosra (Arabic: مسرح بصرى الروماني) is an ancient Roman theatre built in the second quarter of the 2nd century AD after Bosra became the capital of the new Roman province of Arabia. It is the largest, most complete and best preserved theatre of all the Roman theatres in the Middle East, and was one of the largest theatres ever constructed in the Roman world.
Its cavea is divided into three horizontal sections. The first had thirteen rows of seats. The middle section had sixteen rows of seats. The last had only six rows of seats. The theatre was 102 metres (335 ft) wide with room for about 15,000 spectators. The semicircular orchestra is 21 metres (69 ft) in diameter, enclosed by a decorative parapet and entered by two barrel-vaulted gates. Above the entrances were the seats usually reserved for distinguished guests.