Dineen is a unique, unisex given name of Irish origin. It is derived from the ancient Irish name 'Dubhfhionn', which translates to 'dark blonde'. Dineen was traditionally used as a surname in Ireland, but has since been adopted as a first name in various parts of the world.
The name Dineen saw a significant spike in popularity between 1959 and 1964, with the highest number of births recorded in 1964 at 68 babies. However, this was an anomaly as the trend gradually declined thereafter, reaching a low of 5 births in 1977. The name's popularity seemed to have revived slightly by 1981 and again in 1991, but overall, it appears that Dineen has become much less common since the mid-1960s.