Surname Klaar (Klari 
, Kelar 
, Klaar 
) , across the world, is quite a rare last name. The family name Klaar is characteristic of Estonia, where it is quite a rare surname, Sweden, and Albania. Not in comparison with a country's population, it is commonest in Germany, Sweden, and India. Much less frequently, Klaar is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Klari | Brazil, India, United States, Algeria, Germany |
| Kelar | Brazil, Czechia, India, Poland, United States |
| Klaar | Estonia, Belgium, Brazil, Sweden, Germany |
| Клаар | Russia, Ukraine |
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alfred klaar Austrian writer (1848–1927), CZ (b. 1848) |
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ernst klaar German writer (1861-1920), DE (b. 1861) |
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paula klaar film actor and stage actor (1869-1929), DE (b. 1869) |
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| julie klaar holocaust victim, b. 1861-04-01, AT (b. 1861) |
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| karl klaar Austrian archivist, AT (b. 1865) |
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| severin klaar holocaust victim, b. 1866-08-01, AT (b. 1866) |
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| frederike klaar NL (b. 1861) |
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| anna klaar holocaust victim, b. 1874-01-04, AT (b. 1874) |
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liis klaar Estonian politician, EE (b. 1938) |
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| leopoldine klaar holocaust victim, b. 1891-01-14, AT (b. 1891) |
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| jaan klaar (b. 1889) |
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| adalbert klaar Austrian architect and historic preservation (1900-1981), AT (b. 1900) |
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| bernhard klaar Austrian lawyer, AT (b. 1904) |
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| marianne klaar DE (b. 1905) |
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| johann klaar (b. 1908) |
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