Dei Gratia Rex

Dei Gratia Rex (abbreviated as D. G. Rex) is a Latin title inscribed on coins meaning, By the Grace of God, King. The corresponding title for a queen is Dei Gratia Regina (abbreviated as D. G. Regina or D. G. Reg).

This phrase is circumscribed on the obverse of many British and Canadian coins.^[1] The phrase, or some variation of it, has also been used on past coinage issued in Australia, Austria, Cyprus, Spain, and Sweden. In addition to coinage, the phrase is also used on the obverse side of some medals in the Commonwealth realms.