How common is the surname Dai?

4,723 people in the United States had the surname Dai in the 2010 Census, about 1 in every 65,371 Americans. It ranked 7,091st of 162,253 surnames.

Who is the most famous person named Dai?

Hongjie Dai, American chemist, followed by Katherine Tai.

Where is the surname Dai most common?

Wikidata records people named Dai in the United States.

Is the surname Dai getting more or less common?

More common. 2,636 people carried it in the 2000 Census and 4,723 in 2010, up 79%.

Is Dai also a first name?

Yes. Dai 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 Dai

A surname, carried by 4,723 people in the United States.

Pronounced /daɪ/ 1 syllable Soundex D000

Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Dai is more common than 95.6% of them.

Origin

Borrowed from Welsh Dai.

Origin from Wiktionary (CC BY-SA 4.0).

How common it is

2010 US Census

There were 4,723 people named Dai in the United States in 2010, about 1 in every 65,371 Americans. That is up 79% since 2000, when the Census counted 2,636.

#7,091

rank among US surnames

4,723

people in 2010

1.6

per 100,000 Americans

+79.2%

change since 2000 (was #11,060)

Rank	Surname	People	1 in
#7,084	Botelho	4,726	65,329
#7,086	Metcalfe	4,725	65,343
#7,088	Alfano	4,724	65,357
#7,091	Dai	4,723	65,371
#7,093	Landin	4,722	65,384
#7,096	Creed	4,718	65,440
#7,098	Izzo	4,717	65,454

Who is named Dai

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

94% of people named Dai identified as Asian and Pacific Islander, 3.7% as white (not Hispanic) and 1.1% as two or more races.

Asian and Pacific Islander 94%
White (not Hispanic) 3.7%
Two or more races 1.1%
Hispanic or Latino (any race) 0.8%

The Census suppresses very small shares to protect privacy; Black, Native American are not shown.

Compare: most common surnames among Asian and Pacific Islander Americans.

Famous Dais

2 notable people on Wikidata, most written-about first

Hongjie Dai
American chemist, born 1966
Katherine Tai
American attorney (born 1974)

Spellings and sound-alikes

Useful when a record has your ancestor under another spelling

Variant spellings

Surnames that sound like Dai

Dai has the Soundex code D000, the code US census indexes have used since the 1930s. Every surname with code D000.

Questions

Where does the surname Dai come from?: Borrowed from Welsh Dai.
How common is the surname Dai?: 4,723 people in the United States had the surname Dai in the 2010 Census, about 1 in every 65,371 Americans. It ranked 7,091st of 162,253 surnames.
What ethnicity is the surname Dai?: In the 2010 Census, 94% of people named Dai identified as Asian and Pacific Islander, and 3.7% as white (not Hispanic).
Who is the most famous person named Dai?: Hongjie Dai, American chemist, followed by Katherine Tai.
Where is the surname Dai most common?: Wikidata records people named Dai in the United States.
How do you pronounce Dai?: Dai is /daɪ/, one syllable.
Is the surname Dai getting more or less common?: More common. 2,636 people carried it in the 2000 Census and 4,723 in 2010, up 79%.
What are other spellings of Dai?: Tai.
Is Dai also a first name?: Yes. Dai 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.