How common is the last name Kirby?

51,620 people in the United States have the last name Kirby, about 1 in 5,790. It ranks #641 of 156,621 last names in the 2020 Census.

last name

KIRBY

#641

of 156,621 last names recorded in the 2020 Census

People
51,620
About
1 in 5,790
This common or more
34.7%
Who bears it

Of the 51,620 people with the last name Kirby, 83% reported their origin as White, 8.9% as Black and 3.9% as two or more races. These count how people described themselves on the 2020 Census, not where the name comes from.

Spelled almost the same

One last name in the 2020 Census spelled within a letter or two of Kirby, most common first.

Also a first name

As a first name, Kirby ranks #2,048 of 53,615, with 13,276 people. As a baby name it peaked in 1984, with 509 births. See Kirby as a first name

Compare