Costelo Family Crest & Name History

Costelo is a spelling of the Irish surname Costello. Its meaning, shared with Costello, is “Son of Oisdealb”.

Costelo and Costello

Costelo drops the “l” of Costello, a shortening that clerks often made. Census takers and immigration officers often wrote what they heard. Related forms: Costelloe and MacCostello.

Costelo coat of arms

Heraldry is personal: arms associated with the Costello surname were borne by specific families, and sharing the name does not mean sharing the blazon.

Want more than a summary? See the Costelo family name pack.