How common is the surname Gaillard?

2,566 people in the United States had the surname Gaillard in the 2010 Census, about 1 in every 120,322 Americans. It ranked 12,140th of 162,253 surnames.

Who is the most famous person named Gaillard?

Mary K. Gaillard, American physicist, followed by Slim Gaillard.

Where is the surname Gaillard most common?

Wikidata records people named Gaillard in the United States.

Is the surname Gaillard getting more or less common?

More common. 2,304 people carried it in the 2000 Census and 2,566 in 2010, up 11%.

The surname Gaillard

A French surname, carried by 2,566 people in the United States.

2 syllables Soundex G463

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

Origin

French origin

Borrowed from French Gaillard.

One of 791 French surnames on this site.

Origin from Wiktionary (CC BY-SA 4.0).

How common it is

2010 US Census

There were 2,566 people named Gaillard in the United States in 2010, about 1 in every 120,322 Americans. That is up 11% since 2000, when the Census counted 2,304.

#12,140

rank among US surnames

2,566

people in 2010

0.9

per 100,000 Americans

+11.4%

change since 2000 (was #12,367)

Rank	Surname	People	1 in
#12,132	Sugg	2,568	120,228
#12,136	Morelos	2,567	120,275
#12,140	Tuten	2,566	120,322
#12,148	Rosato	2,565	120,369

Who is named Gaillard

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

47% of people named Gaillard identified as Black (not Hispanic), 46% as white (not Hispanic) and 3.3% as Hispanic or Latino (any race).

Black (not Hispanic) 47%
White (not Hispanic) 46%
Hispanic or Latino (any race) 3.3%
Two or more races 3.3%

The Census suppresses very small shares to protect privacy; Asian & Pacific Islander, Native American are not shown.

Compare: most common surnames among Black Americans.

Famous Gaillards

4 notable people on Wikidata, most written-about first

Mary K. Gaillard
American physicist, 1939–2025
Slim Gaillard
American musician (1916–1991)
Robert Gaillard
American actor, film director and screenwriter (1868–1941)
John Gaillard
American politician (1765-1826)

Spellings and sound-alikes

Useful when a record has your ancestor under another spelling

Surnames that sound like Gaillard

Gaillard has the Soundex code G463, the code US census indexes have used since the 1930s. Every surname with code G463.

Other French surnames

All 791 French surnames

Questions

Where does the surname Gaillard come from?: Borrowed from French Gaillard.
How common is the surname Gaillard?: 2,566 people in the United States had the surname Gaillard in the 2010 Census, about 1 in every 120,322 Americans. It ranked 12,140th of 162,253 surnames.
What ethnicity is the surname Gaillard?: In the 2010 Census, 47% of people named Gaillard identified as Black (not Hispanic), and 46% as white (not Hispanic).
Who is the most famous person named Gaillard?: Mary K. Gaillard, American physicist, followed by Slim Gaillard.
Where is the surname Gaillard most common?: Wikidata records people named Gaillard in the United States.
Is the surname Gaillard getting more or less common?: More common. 2,304 people carried it in the 2000 Census and 2,566 in 2010, up 11%.