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    The surname Mulcahy

    An Irish patronymic surname, carried by 6,595 people in the United States.

    Pronounced /mʌlˈkæhiː/ 3 syllables Soundex M420

    Mulcahy: #5,279 of 162,253 surnames in the 2010 US Census #1Smith#160,975Doriott#10Martinez#100Jimenez#1,000Archer Mulcahy #5,279, 6,595 people Mulcahy: #5,279 of 162,253 surnames in the 2010 US Census #1Smith#160,975Doriott#100Jimenez Mulcahy #5,279, 6,595 people
    Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Mulcahy is more common than 96.7% of them.

    Origin

    Irish origin

    Reduced Anglicized form of Irish Ó Maolchathaigh (“descendant of the devotee of (Saint) Cathach”), a byname from cathachyss (“warlike”).

    Mulcahy 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 6,595 people named Mulcahy in the United States in 2010, about 1 in every 46,815 Americans. That is up 2.3% since 2000, when the Census counted 6,444.

    #5,279
    rank among US surnames
    6,595
    people in 2010
    2.2
    per 100,000 Americans
    +2.3%
    change since 2000 (was #4,995)
    RankSurnamePeople1 in
    #5,270Novotny6,61746,659
    #5,271Viola6,61646,666
    #5,273Vollmer6,61446,681
    #5,274Burchfield6,61246,695
    #5,275Marchand6,61046,709
    #5,277Heiser6,60646,737
    #5,278Keil6,60346,758

    Who is named Mulcahy

    Race and Hispanic origin as people reported it in the 2010 Census

    96% of people named Mulcahy identified as white (not Hispanic), 2.2% as Hispanic or Latino (any race) and 1.1% as two or more races.

    • White (not Hispanic) 96%
    • Hispanic or Latino (any race) 2.2%
    • Two or more races 1.1%
    • Asian and Pacific Islander 0.6%
    • American Indian and Alaska Native 0.2%
    • Black (not Hispanic) 0.1%

    Compare: most common surnames among white Americans.

    Famous Mulcahys

    2 notable people on Wikidata, most written-about first

    • Russell Mulcahy
      Australian film director, born 1953
    • John Mulcahy
      American rower (1876–1942)

    Notable Mulcahys come mostly from Australia (1) and the United States (1).

    Spellings and sound-alikes

    Useful when a record has your ancestor under another spelling

    Variant spellings

    Surnames that sound like Mulcahy

    Mulcahy has the Soundex code M420, the code US census indexes have used since the 1930s. Every surname with code M420.

    Other Irish surnames

    All 880 Irish surnames

    Questions

    Where does the surname Mulcahy come from?
    Reduced Anglicized form of Irish Ó Maolchathaigh (“descendant of the devotee of (Saint) Cathach”), a byname from cathachyss (“warlike”).
    How common is the surname Mulcahy?
    6,595 people in the United States had the surname Mulcahy in the 2010 Census, about 1 in every 46,815 Americans. It ranked 5,279th of 162,253 surnames.
    What ethnicity is the surname Mulcahy?
    In the 2010 Census, 96% of people named Mulcahy identified as white (not Hispanic), and 2.2% as Hispanic or Latino (any race).
    Who is the most famous person named Mulcahy?
    Russell Mulcahy, Australian film director, followed by John Mulcahy.
    Where is the surname Mulcahy most common?
    Wikidata records people named Mulcahy in Australia and the United States.
    How do you pronounce Mulcahy?
    Mulcahy is /mʌlˈkæhiː/, 3 syllables.
    What type of surname is Mulcahy?
    Mulcahy is a patronymic surname, formed from a father’s (or ancestor’s) given name.
    Is the surname Mulcahy getting more or less common?
    More common. 6,444 people carried it in the 2000 Census and 6,595 in 2010, up 2.3%.
    What are other spellings of Mulcahy?
    Mulkey.