Batanaea or Batanea (the Hellenized/Latinised form of Bashan) was an area of the Biblical Holy Land, north-east of the Jordan River, to the west of Trachonitis. It was one of the four post-Exile divisions of the area of Bashan. Now known as Ard-el-Bathanyeh, it runs north-south along the east side of the Lejah (Trachonitis) and the Hauran (Auranitis), from Salkhad on the south, to Tells Khaledyeh and Asfar on the north. It is, on average, 12 miles wide, and for 30 miles along it extends the Gebel Hauran, a range of hills, whose central plateau is 2670 ft. above sea level and whose highest point is 6400 ft. Its highest peak may be the "Hill of Basan" referred to in Psalm 68:15.
In the 1st century BCE the land was acquired by Herod the Great, and on his death in 4 BCE passed to his son Philip as part of his inheritance. In some sources Philip is referred to as "Tetrarch of Batanea" with the capital at Caesarea Philippi, though his lands were more extensive than this.
D. A. Carson, in his commentary on the Gospel of John, says that the "Bethany across the Jordan" of John 1:28, is actually "Batanaea", transliterated across Aramaic to Greek. Thus it is distinct from the other, more prominent Bethany in the gospels.