List of Famous people with last name Costello

Matthew Tyler Costello is an American-born naturalised Ivorian professional basketball player for Baskonia of the Spanish Liga ACB and the EuroLeague. He played college basketball for Michigan State.

Stephen John Costello is an American operatic tenor and a recipient of the 2009 Richard Tucker Award. Costello has performed in noted opera houses around the world including Covent Garden, Metropolitan Opera, and Lyric Opera of Chicago. In 2010, Costello originated the role of Greenhorn (Ishmael) in the world premiere of Jake Heggie's Moby-Dick at the Dallas Opera.

Helene Costello was an American stage and film actress, most notably of the silent era.

Mae Costello was an American stage and film actress of the early twentieth-century.

John Aloysius Costello, was an Irish Fine Gael politician who served as Taoiseach from 1948 to 1951 and from 1954 to 1957, Leader of the Opposition from 1951 to 1954 and from 1957 to 1959, and Attorney General of Ireland from 1926 to 1932. He served as a Teachta Dála (TD) from 1933 to 1943 and from 1944 to 1969.

Peter Howard Costello, AC, is a former Australian politician and lawyer who served as the Treasurer in the Australian Howard Government from 1996 to 2007. He is the longest-serving Treasurer in Australia's history. Costello was a Member of the Australian House of Representatives from 1990 to 2009, representing the Division of Higgins. He also served as the Deputy Leader of the Liberal Party from 1994 to 2007.

Mariclare Costello is an American television, stage, and movie actress. She is a lifetime member of The Actors Studio. Costello's most notable role was that of Rosemary Hunter Fordwick on the television series The Waltons, from 1972 to 1977. In 1977, after her role on The Waltons, she played matriarch Maggie Fitzpatrick on the short-lived drama show The Fitzpatricks.

Edward "Ward" Costello was an American actor, composer and lyricist. He composed and wrote the lyrics to the theme for The Gallant Hours.

Brigadier-General Edmund William Costello, VC, CMG, CVO, DSO was a British Indian Army officer and a recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces.