Cognomen Vaal (Wal 
, Vaal 
, Вааль 
) , in the entire world, is a common surname. The cognomen Vaal is habitual in Netherlands, where it is quite a common surname, Aruba, and Cabo Verde. Measured by absolute frequency, it is commonest in Netherlands, India, and Myanmar. Likewise, Vaal is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Wal | Netherlands, Myanmar, India, Poland, Algeria |
| Vaal | Netherlands, Myanmar, India, United States, Germany |
| Вааль | Kazakhstan, Russia, Ukraine |
| Ваал | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| wim vaal Dutch association football manager (1901-1980), NL (b. 1901) |
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| jacobus bernardus de vaal teacher and historian (1914-1989) (b. 1914) |
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| otto marinus de vaal university teacher (1916-1993), NL (b. 1916) |
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| erica vaal Austrian actress, AT (b. 1927) |
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| jan de vaal NL (b. 1922) |
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| peter de vaal South African cricketer, ZA (b. 1945) |
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| elizabeth de vaal Dutch painter, NL (b. 1950) |
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| elisabeth de vaal NL (b. 1950) |
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| jan willem vaal (b. 1960) |
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| m h de vaal researcher |
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| alma de vaal researcher (ORCID 0000-0001-5115-5967) |
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| philip de vaal researcher |
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| jacques de vaal |
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| jeroen de vaal |
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| h. de vaal |
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