How common is the surname Tiernan?

2,552 people in the United States had the surname Tiernan in the 2010 Census, about 1 in every 120,982 Americans. It ranked 12,204th of 162,253 surnames.

What ethnicity is the surname Tiernan?

In the 2010 Census, 96% of people named Tiernan identified as white (not Hispanic), and 2.5% as Hispanic or Latino (any race).

Who is the most famous person named Tiernan?

Andrew Tiernan, British actor, followed by Patrick Tiernan.

Where is the surname Tiernan most common?

Wikidata records people named Tiernan in the United Kingdom, Australia and the United States.

Is the surname Tiernan getting more or less common?

More common. 2,392 people carried it in the 2000 Census and 2,552 in 2010, up 6.7%.

Is Tiernan also a first name?

Yes. Tiernan is used as a first name as well as a surname; its first-name page has the meaning and how many babies were given it.

The surname Tiernan

A surname, carried by 2,552 people in the United States.

2 syllables Soundex T655 Also a first name

Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Tiernan is more common than 92.5% of them.

Origin

From Irish Tiarnán, from Tiarna (“lord”).

Origin from Wiktionary (CC BY-SA 4.0).

How common it is

2010 US Census

There were 2,552 people named Tiernan in the United States in 2010, about 1 in every 120,982 Americans. That is up 6.7% since 2000, when the Census counted 2,392.

#12,204

rank among US surnames

2,552

people in 2010

0.9

per 100,000 Americans

+6.7%

change since 2000 (was #11,981)

Rank	Surname	People	1 in
#12,198	Moro	2,554	120,887
#12,199	Baney	2,553	120,934
#12,204	Stimson	2,552	120,982
#12,208	Getchell	2,551	121,029
#12,212	Wicklund	2,550	121,077

Who is named Tiernan

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

96% of people named Tiernan identified as white (not Hispanic), 2.5% as Hispanic or Latino (any race).

White (not Hispanic) 96%
Hispanic or Latino (any race) 2.5%
Two or more races 0.8%
Asian and Pacific Islander 0.5%
Black (not Hispanic) 0.2%
American Indian and Alaska Native 0.2%

Compare: most common surnames among white Americans.

Famous Tiernans

3 notable people on Wikidata, most written-about first

Andrew Tiernan
British actor, born 1965
Patrick Tiernan
Australian runner, born 1994
Robert Tiernan
American politician (1929–2014)

Notable Tiernans come mostly from the United Kingdom (1), Australia (1) and the United States (1).

Questions

Where does the surname Tiernan come from?: From Irish Tiarnán, from Tiarna (“lord”).
How common is the surname Tiernan?: 2,552 people in the United States had the surname Tiernan in the 2010 Census, about 1 in every 120,982 Americans. It ranked 12,204th of 162,253 surnames.
What ethnicity is the surname Tiernan?: In the 2010 Census, 96% of people named Tiernan identified as white (not Hispanic), and 2.5% as Hispanic or Latino (any race).
Who is the most famous person named Tiernan?: Andrew Tiernan, British actor, followed by Patrick Tiernan.
Where is the surname Tiernan most common?: Wikidata records people named Tiernan in the United Kingdom, Australia and the United States.
Is the surname Tiernan getting more or less common?: More common. 2,392 people carried it in the 2000 Census and 2,552 in 2010, up 6.7%.
Is Tiernan also a first name?: Yes. Tiernan is used as a first name as well as a surname; its first-name page has the meaning and how many babies were given it.