Baasha son of Rehob (Akkadian: 𒁀𒀪𒊓 𒈥 𒊒𒄷𒁉, romanized: mBaʿsa mar Ruḫubi) was the king of Ammon in 853 BCE.
Along with Bar-Hadad II of Damascus, Ahab of the Kingdom of Israel, the Arab king Gindibu, and a coalition of other Levantine monarchs, Baasha fought against the Assyrian king Shalmaneser III at the Battle of Qarqar.