Derrin is of Irish origin, derived from the ancient personal name 'Derbhfhorgha', which is composed of the elements 'derbh' meaning 'spear' and 'forgath' meaning 'victory'. This name was borne by a 6th-century Irish abbot who later became the patron saint of Clonenagh, County Laois. The name Derrin was popularized in Ireland during the 19th century but has since become quite rare. In English-speaking countries today, it is more often encountered as a surname rather than a given name.
The name Derrin experienced notable popularity in the late 1960s to early 1970s, with a peak of 29 births in 1965. However, it has since declined significantly, with the most recent year showing only 5 births (2023). Over the span of 63 years, there have been a total of 677 babies named Derrin.