Ahad is a Middle Eastern given forename primarily used by Muslims (e.g. Ahad rezayan) and Jews (e.g. Ahad Ha'am). It is also used as a family name (surname) (e.g. Oli Ahad). In Arabic Ahad means "one", "unique" or "matchless" and is usually used by Muslims when referring to God by prefixing Ahad with Al-, i.e.
Abdul Ahad (Arabic: عبد الاØد ‎‎) is an Arabic male given name. ... The name means "servant of the only One", Al-Ahad being one of the names of God for Arabic-speaking Christians as well as for Muslims. It is listed in the Qur'an, which give rise to the Muslim theophoric names.