There are many names for God in Abrahamic religions. Some names within Judaism include YHWH, Adonai, Yahweh and Elohim. In Christianity, names for God include the Lord and Jehovah. In Islam, names for God include Allah, Ar-Rahman and Ar-Rahim.
Several different names for God are used throughout the Bible. The most common ones are YHWH, Elohim, Adonai and El. YHWH usually translates as Yahweh and appears 6,800 times, which is by far the most. Second is Elohim, with 2,600 appearances. In Judaism, YHWH is considered the proper name of God, as vowels were not used in ancient Hebrew. However, since YHWH cannot be pronounced, the modern Jews use Adonai when praying.
Most Christian traditions use God, and substitute the Lord or Jehovah in some instances. Other names in different traditions include The Light, King of Kings, Lord of Hosts, El Shaddai and Abba. Mormons commonly use Elohim. In Chinese, Shangdi refers to the Christian God.
In Islam, Allah is the most commonly used name. However, the Koran says to Him Belong the Best Names, so various descriptions, such as the Entirely Merciful, the Overseer, the Perfection, the Bestower of Faith and others are used. Outside of Arabic, names such as Khoda, Parvardigar and Hu are used.