Cognomen Lera (Lera 
, Rat 
, Лера 
) , throughout the world, is a common last name. The cognomen Lera is characteristic of Romania, where it is quite a common surname, Albania, and Moldova, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Bangladesh, Argentina, and France. Also, Lera is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Lera | Ethiopia, France, Romania, Argentina, India |
| Rat | France, Romania, Argentina, India, Bangladesh |
| Лера | France, Russia, United States, Italy, Mexico |
| ليرا | Palestinian Territory, Iraq |
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enrico boggio lera Italian physicist (1862-1956), IT (b. 1862) |
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lera millard thomas American politician (1900-1993), US (b. 1900) |
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| carlos américo lera MX (b. 1855) |
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| ángel maría de lera Spanish writer (1912-1984), ES (b. 1912) |
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| guglielmo lera (1922-2004) (b. 1922) |
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lera lynn American singer-songwriter, US (b. 1984) |
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| gregorio pérez de lera Spanish politician (1948-1993), ES (b. 1948) |
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| lera shestakova (b. 1938) |
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| antonio f. lera Spanish writer, ES (b. 1952) |
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| joe lera Papua New Guinean politician, PG (b. 1961) |
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| chema lera Spanish journalist, ES (b. 1963) |
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| lydia lera researcher (ORCID 0000-0001-7470-2433) |
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| angel r de lera researcher |
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| lera antipova musician |
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| thomas lera American philatelist |
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