The surname Costello
An Irish patronymic surname, carried by 32,043 people in the United States.
Pronounced /kɑˈstɛloʊ/ 3 syllables Soundex C234
Origin
Irish origin
* As an Irish surname, reduced Anglicized form of Irish Mac Oisdealbhaigh (“son of Oisdealbhach”), a personal name composed of the elements os (“deer”) and dealbhach (“resembling, in the form of”). * As an Italian surname, Americanized from Castello. * As a Serbo-Croatian or Slovene surname, Americanized from Kostelec, Kostevc, from Kostelsko region in Lower Carniola, named after Kostel Castle, from earlier Costel, Slavicized from Latin castrum (“fortress”), hence related to the Italian above.
Costello is a patronymic surname: formed from a father’s (or ancestor’s) given name.
One of 880 Irish surnames on this site.
Origin from Wiktionary (CC BY-SA 4.0).
How common it is
2010 US Census
There were 32,043 people named Costello in the United States in 2010, about 1 in every 9,635 Americans. That is up 2.5% since 2000, when the Census counted 31,266.
Who is named Costello
Race and Hispanic origin as people reported it in the 2010 Census
91% of people named Costello identified as white (not Hispanic), 5.5% as Hispanic or Latino (any race) and 1.3% as Black (not Hispanic).
- White (not Hispanic) 91%
- Hispanic or Latino (any race) 5.5%
- Black (not Hispanic) 1.3%
- Two or more races 1.3%
- Asian and Pacific Islander 0.7%
- American Indian and Alaska Native 0.3%
Famous Costellos
17 notable people on Wikidata, most written-about first
- Dolores CostelloAmerican actress (1903–1979)
- Lou CostelloAmerican actor and comedian (1906–1959)
- John A. Costello3rd Taoiseach from 1948 to 1951, and 1954 to 1957
- Helene CostelloAmerican actress (1906–1957)
- Maurice CostelloAmerican actor and film director (1877–1950)
- Paul CostelloAmerican rower (1894–1986)
- Mae CostelloAmerican actress (1882-1929)
- Mariclare CostelloAmerican actress, 1936–2026
- Larry CostelloAmerican basketball player and coach (1931–2001)
- Angelica CostelloAmerican pornographic actress, born 1978
- Jerry CostelloAmerican politician, born 1949
- Pat CostelloAmerican rower, 1929–2014
Notable Costellos come mostly from the United States (15), Ireland (1) and Australia (1).
Spellings and sound-alikes
Useful when a record has your ancestor under another spelling
Variant spellings
Surnames that sound like Costello
Costello has the Soundex code C234, the code US census indexes have used since the 1930s. Every surname with code C234.
Other Irish surnames
Questions
- Where does the surname Costello come from?
- * As an Irish surname, reduced Anglicized form of Irish Mac Oisdealbhaigh (“son of Oisdealbhach”), a personal name composed of the elements os (“deer”) and dealbhach (“resembling, in the form of”). * As an Italian surname, Americanized from Castello. * As a Serbo-Croatian or Slovene surname,…
- How common is the surname Costello?
- 32,043 people in the United States had the surname Costello in the 2010 Census, about 1 in every 9,635 Americans. It ranked 1,093rd of 162,253 surnames.
- What ethnicity is the surname Costello?
- In the 2010 Census, 91% of people named Costello identified as white (not Hispanic), and 5.5% as Hispanic or Latino (any race).
- Who is the most famous person named Costello?
- Dolores Costello, American actress (1903–1979), followed by Lou Costello.
- Where is the surname Costello most common?
- Wikidata records people named Costello in the United States, Ireland and Australia.
- How do you pronounce Costello?
- Costello is /kɑˈstɛloʊ/, 3 syllables.
- What type of surname is Costello?
- Costello is a patronymic surname, formed from a father’s (or ancestor’s) given name.
- Is the surname Costello getting more or less common?
- More common. 31,266 people carried it in the 2000 Census and 32,043 in 2010, up 2.5%.
- What are other spellings of Costello?
- Costilow, Costley and Costlow.