First Name
in the U.S.
since 1880
Last Name
in the U.S.
in 2010
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How to Pronounce Shamrock

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Meaning and Origin

What does the name Shamrock mean? Find out below.

Origin and Meaning of Shamrock

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Webster's Unabridged Dictionary
noun Sham"rock
A trifoliate plant used as a national emblem by the Irish. The legend is that St. Patrick once plucked a leaf of it for use in illustrating the doctrine of the trinity.

Note: ☞ The original plant was probably a kind of wood sorrel (Oxalis Acetocella); but now the name is given to the white clover (Trifolium repens), and the black medic (Medicago lupulina).

Etymology: L. seamrog seamar, trefoil, white clover, white honeysuckle; akin to Gael. seamrag

Other Dictionary Sources
  1. Clover native to Ireland with yellowish flowers; often considered the true or original shamrock
  2. Creeping European clover having white to pink flowers and bright green leaves; naturalized in United States; widely grown for forage
  3. Eurasian plant with heart-shaped trifoliate leaves and white purple-veined flowers

From Irish seamróg, from Old Irish semróc, diminutive of semar, semair (“clover”), from Proto-Celtic *semarā, *semaris (compare Gaulish uisumaris (“clover”)), possibly from Proto-Indo-European *semh₁r-, *smeh₁r-. Related to Old Norse smári (“clover”) and possibly Georgian სამყურა (samq̇ura, “clover”).

  1. The trefoil leaf of any small clover, especially Trifolium repens, or such a leaf from a clover-like plant, commonly used as a symbol of Ireland.
    She wore a in honor of her Irish ancestry.
  2. Any of several small plants, forms of clover, with trefoil leaves, especially Trifolium repens.
    The fields were covered with .

Notable Persons Named Shamrock


Notable Persons With the Last Name Shamrock

Ken Shamrock is a martial artist. Ken was born on February 11th, 1964 in Macon, Georgia , United States.


Frank Shamrock is a martial artist. Frank was born on December 8th, 1972 in Santa Monica, California.


Shane was born on February 8th, 1975 in Baltimore. He died on August 18th, 1998.



Where is the name Shamrock popular?

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Popularity of Shamrock as a last name

The map shows the absolute popularity of the name Shamrock as a last name in each of the states. See other popular names in Pennsylvania, New York, or Ohio.

Common first names for Shamrock

Ethnicity Distribution

Ethnicity Shamrock U.S.
  White 93.35% 64.26%
  African American 0.00% 11.96%
  Asian, Hawaiian, and Pacific Islander 0.00% 4.85%
  American Indian and Alaska Native 0.00% 0.69%
  Two or More Ethnicities 0.00% 1.76%
  Hispanic or Latino 3.72% 16.26%

Of Last Name Shamrock

People with the last name Shamrock are most frequently White

Entire United States

Fun Facts about the name Shamrock

  • How Popular is the name Shamrock? As a last name Shamrock was the 54,752nd most popular name in 2010.
  • When was the first name Shamrock first recorded in the United States? The oldest recorded birth by the Social Security Administration for the name Shamrock is Monday, January 11th, 1875.
  • How unique is the name Shamrock? From 1880 to 2017 less than 5 people per year have been born with the first name Shamrock. Hoorah! You are a unique individual.
  • Weird things about the name Shamrock: Your name in reverse order is Kcormahs. A random rearrangement of the letters in your name (anagram) will give Maoskchr. How do you pronounce that?
  • How many people have the last name Shamrock? In 2010, the U.S. Census Bureau surveyed 376 people with the last name Shamrock.
  • How likely are you to meet someone with the last name of Shamrock? Chances are, most people haven't met someone with Shamrock as their last name since less than 1 person in 769k people have that last name. If you know one, consider yourself lucky!

What Shamrocks Have Visited This Page?

Name poster for Shamrock

Name poster for Shamrock(click to save the high quality version)

Most Popular Names

All Name Lists

  • Sources:
  • U.S. Census Bureau: Frequently Occurring Surnames from the Census 2000 (public domain).
  • 1913 Webster's Revised Unabridged Dictionary via the Collaborative International Dictionary of English (License)
  • Other Dictionary Sources: WordNet 3.1 Copyright 2006 by Princeton University (License).
  • Wiktionary: Titles and License.
  • Notable persons via Wikipedia: Titles and License. Click each image for the attribution information.