Cognomen Lousada (Lousada 
) , globally, is quite a rare surname. The family name Lousada is habitual in Portugal, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Brazil, where it is a rare surname. Not in comparison with a country's population, it is commonest in Brazil, Portugal, and the United Kingdom.
| emanuel lousada merchant and slave plantation owner (1783–1854) (b. 1783) |
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| john baruh lousada (1809-1890) (b. 1809) |
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| george emauel baruk lousada (born 1822) (b. 1822) |
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| percy lousada British cleric and photographer (b. 1823) |
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| simeon lousada (1825-1905) (b. 1825) |
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| antónio josé coelho lousada Portuguese writer, GW (b. 1828) |
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| isaac barah lousada (born 1831) (b. 1831) |
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| louisa tryphena lousada (1833-1914) (b. 1833) |
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| mary lousada (1835-1921) (b. 1835) |
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| agnes henrietta lousada (1837-1902) (b. 1837) |
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| harry burningham lousada (born 1844) (b. 1844) |
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| eleanor piercy mary dolores lousada (1845-1927) (b. 1845) |
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| st. leger lousada Peerage person ID=680763 (b. 1846) |
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| herbert lousada (born 1847) (b. 1847) |
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| herbert george lousada (1847-1918) (b. 1847) |
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