Family name Montllor (Montllor 
) , in the world, is a very rare surname. The last name Montllor is characteristic of Spain, where it is a rare surname, France, where it is a very rare surname, and the United States, where it is an extremely rare surname. Likewise, Montllor is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Montllor | France, Spain, United States |
| margarita montllor convicted of beigin a witch, ES (b. 1575) |
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joan montllor i pujal Spanish historian (1874-1960), ES (b. 1874) |
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| joan antoni pagès i montllor (b. 1825) |
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| josé montllor blanes ES (b. 1834) |
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ovidi montllor Spanish singer-songwriter and actor, ES (b. 1942) |
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| josé montllor boxer, ES (b. 1907) |
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| joseph john montllor United States consul at Phnom Penh, US (b. 1916) |
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