Kai

← Back to The High and Late Middle Ages

Boy · Hawaiian, Frisian or Welsh (several)

Kai

Say it: KY

Try it with your surname

Meaning

Has several unrelated origins: Hawaiian kai 'sea', a Frisian and Scandinavian name of uncertain origin, and Welsh Cai, from Latin Gaius.

Uncertainseveral explanations, none settled.

Long used in northern Germany and Scandinavia, it became popular in the US in the 2000s.

Its wave through time

Rising now

In the United States

012318801900192019401960198020002020Girls 2020Boys 2020per 1,000 babies of that sex
  • 54,038 babies given this name since 1926
  • At its height in 2020, about 1 in 448 boys
  • 4,150 babies in 2020

Through the ages

  1. The Modern Age1880 to today

Used by

GermanDanishNorwegianSwedishAmerican

The family of the name

Other spellings: Kye

GermanKai
DanishKai
WelshCai

Names worth a look

Where this comes from

  • National birth statistics of European countries source
  • United States Social Security birth records, 1880 to today source
  • United States Social Security birth records, 1880 to today source

Meanings and histories are compiled from the study of names and their languages and checked by a second review.

Meanings and histories are drawn from the study of names and their languages, each with a confidence rating; popularity figures come from official birth records. Name histories are a living field: if you know of a correction, we would be glad to hear it.