


During the decades spanning 1900–1940 the name wasn't among the top 1,000 given names recorded for babies in the United States. However, it ranked within the top 100 given names for babies in New England with 2.60 occurrences per 1,000. In 2008, the name was not in the top 100 given names for babies in the United States. The popularity of (forms of) Brendan in Gaelic-speaking countries is thought to have influenced the use and popularity of the etymologically unrelated feminine name Brenda. It is derived from the surname Brennan, an Anglicised form of the Irish Ó Braonáin. In some cases, the masculine given name Brennan may be used as a contracted form of Brendan, although it is etymologically unrelated. English – Brandon (in some cases), Brendon.In most cases, the masculine given name Brandon, pronounced / ˈ b r æ n d ən/, is considered to be derived from the surname Brandon, which is in turn derived from two Old English elements. This feminine given name, pronounced / ˈ b r ɛ n d ə/, is thought to be derived from the Old Norse element brand, meaning "(flaming) sword". There is no etymological link between Brendan and Brenda.

Variations of the Irish Breandán are Breanndán, Bhreandán and Bhreandáin. When used in an Irish sentence it can take the form Bhreandán e.g. According to one old Irish text there are 17 saints with the name. Both the English form and the modern Irish form, Breandán, are based upon the mediaeval Latin form Brendanus. This Old Irish personal name (pronounced ) is derived from a borrowing of the Welsh language word breenhín, meaning "a prince". The English Brendan is an Anglicised form of the Irish Breandán, in turn derived from the Old Irish Brénainn.
