Moab is the historical name for a mountainous strip of land in Jordan

Jordan

Jordan , officially the Hashemite Kingdom of Jordan , Al-Mamlaka al-Urduniyya al-Hashemiyya) is a kingdom on the East Bank of the River Jordan. The country borders Saudi Arabia to the east and south-east, Iraq to the north-east, Syria to the north and the West Bank and Israel to the west, sharing...

. The land lies alongside much of the eastern shore of the Dead Sea

Dead Sea

The Dead Sea , also called the Salt Sea, is a salt lake bordering Jordan to the east and Israel and the West Bank to the west. Its surface and shores are below sea level, the lowest elevation on the Earth's surface. The Dead Sea is deep, the deepest hypersaline lake in the world...

. The existence of the Kingdom of Moab is attested to by numerous archeological findings, most notably the Mesha Stele

Mesha Stele

The Mesha Stele is a black basalt stone bearing an inscription by the 9th century BC ruler Mesha of Moab in Jordan....

, which describes the Moabite victory over an unnamed son of King

Monarch

A monarch is the person who heads a monarchy. This is a form of government in which a state or polity is ruled or controlled by an individual who typically inherits the throne by birth and occasionally rules for life or until abdication...

 Omri

Omri

Omri was a king of Israel, successful military campaigner and first in the line of Omride kings that included Ahab, Ahaziah and Joram.He was "commander of the army" of king Elah when Zimri murdered Elah and made himself king. Instead, the troops at Gibbethon chose Omri as king, and he led them to...

 of Israel. The Moabite capital was Dibon. In Biblical times, the nation was often in conflict with its Israelite neighbours to the west.
The etymology of the word is uncertain.