Costello

Costello is a surname of Italian origin used in several countries. It is a toponymic name derived from places named Costello or Castello, from the Italian word castello meaning “castle.” The name is also found in Ireland and among Irish- and British-descended populations, reflecting historical migration patterns.

The best known bearer is Elvis Costello, stage name of Declan Patrick MacManus (born 1954 in London). He is an English singer‑songwriter whose work spans rock, pub rock, new wave, and beyond. He has released a large body of acclaimed albums and collaborated widely, establishing a prominent presence in contemporary music.

Beyond Elvis Costello, the surname has been carried by various public figures in sports, arts, and politics, and it also appears in fiction and popular culture. As a result, Costello is recognized as a prominent example of Italian-derived surnames that have become common in English‑speaking countries.