How common is the surname Kaczynski?

1,377 people in the United States had the surname Kaczynski in the 2010 Census, about 1 in every 224,216 Americans. It ranked 19,590th of 162,253 surnames.

What ethnicity is the surname Kaczynski?

In the 2010 Census, 98% of people named Kaczynski identified as white (not Hispanic), and 0.7% as Hispanic or Latino (any race).

Who is the most famous person named Kaczynski?

Ted Kaczynski, American mathematician and domestic terrorist (1942–2023), followed by Jarosław Kaczyński.

Where is the surname Kaczynski most common?

Wikidata records people named Kaczynski in the United States and Poland.

How do you pronounce Kaczynski?

Kaczynski is /kəˈzɪn.ski/, 3 syllables.

Is the surname Kaczynski getting more or less common?

More common. 1,356 people carried it in the 2000 Census and 1,377 in 2010, up 1.5%.

The surname Kaczynski

A Polish surname, carried by 1,377 people in the United States.

Pronounced /kəˈzɪn.ski/ 3 syllables Soundex K252

Every surname held by 100 or more people in the 2010 US Census, most common on the left (162,253 in all). Kaczynski is more common than 87.9% of them.

Origin

Polish origin

Borrowed from Polish Kaczyński.

One of 304 Polish surnames on this site.

Origin from Wiktionary (CC BY-SA 4.0).

How common it is

2010 US Census

There were 1,377 people named Kaczynski in the United States in 2010, about 1 in every 224,216 Americans. That is up 1.5% since 2000, when the Census counted 1,356.

#19,590

rank among US surnames

1,377

people in 2010

0.5

per 100,000 Americans

+1.5%

change since 2000 (was #18,712)

Rank	Surname	People	1 in
#19,581	Maclaren	1,378	224,053
#19,590	Kaczynski	1,377	224,216

Who is named Kaczynski

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

98% of people named Kaczynski identified as white (not Hispanic).

White (not Hispanic) 98%
Hispanic or Latino (any race) 0.7%
Two or more races 0.7%

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

Compare: most common surnames among white Americans.

Famous Kaczynskis

2 notable people on Wikidata, most written-about first

Ted Kaczynski
American mathematician and domestic terrorist (1942–2023)
Jarosław Kaczyński
13th Prime Minister of the Republic of Poland, born 1949

Notable Kaczynskis come mostly from the United States (1) and Poland (1).

Spellings and sound-alikes

Useful when a record has your ancestor under another spelling

Surnames that sound like Kaczynski

Kuczynski

Kaczynski has the Soundex code K252, the code US census indexes have used since the 1930s. Every surname with code K252.

Other Polish surnames

All 304 Polish surnames

Questions

Where does the surname Kaczynski come from?: Borrowed from Polish Kaczyński.
How common is the surname Kaczynski?: 1,377 people in the United States had the surname Kaczynski in the 2010 Census, about 1 in every 224,216 Americans. It ranked 19,590th of 162,253 surnames.
What ethnicity is the surname Kaczynski?: In the 2010 Census, 98% of people named Kaczynski identified as white (not Hispanic), and 0.7% as Hispanic or Latino (any race).
Who is the most famous person named Kaczynski?: Ted Kaczynski, American mathematician and domestic terrorist (1942–2023), followed by Jarosław Kaczyński.
Where is the surname Kaczynski most common?: Wikidata records people named Kaczynski in the United States and Poland.
How do you pronounce Kaczynski?: Kaczynski is /kəˈzɪn.ski/, 3 syllables.
Is the surname Kaczynski getting more or less common?: More common. 1,356 people carried it in the 2000 Census and 1,377 in 2010, up 1.5%.