Cognomen Lasa (Rasa 
, Lasa 
, Ласа 
) , worldwide, is a common last name. The family name Lasa is habitual in Latvia, where it is quite a common surname, Afghanistan, and Qatar. In absolute terms, it most frequently occurs in India, Indonesia, and Afghanistan. Also, Lasa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rasa | Spain, Lithuania, India, Afghanistan, Indonesia |
| Lasa | Spain, Ethiopia, Argentina, India, Indonesia |
| Ласа | Russia, Kyrgyzstan, Ukraine |
| leopold von heydebrand und der lasa DE (b. 1754) |
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tassilo von heydebrand und der lasa German chess player, DE (b. 1818) |
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ernst von heydebrand und der lasa German politician (1851-1924), PL (b. 1851) |
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heinrich von heydebrand und der lasa German politician (1861-1924), DE (b. 1861) |
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| oskar von heydebrand und der lasa DE (b. 1815) |
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| wilhelm von heydebrand und der lasa German politician and jurist (1849-1908), PL (b. 1849) |
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| miguel ygnacio lasa olano 1852-04-03, ES (b. 1852) |
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bernardo estornes lasa Basque writer (1907-1999), ES (b. 1907) |
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| georg von heydebrand und der lasa PL (b. 1853) |
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| christoph ernst kaspar sigismund von heydebrand und der lasa (b. 1863) |
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| mariano arigita lasa ES (b. 1864) |
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| bernardo estornés lasa (b. 1869) |
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| esteban lasa ES (b. 1874) |
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mikel lasa Basque writer, ES (b. 1938) |
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| ernst von heydebrand und der lasa PL (b. 1884) |
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