Family name Sumulong (Sumulong 
) , across the world, is quite a rare cognomen. The last name Sumulong is habitual in Philippines, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Hong Kong. Not in comparison with a country's population, it most frequently occurs in Philippines, the United States, and United Arab Emirates. Much less frequently, Sumulong is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sumulong | United Arab Emirates, Philippines, Hong Kong, United States, Canada |
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juan sumulong Filipino politician (1875-1942), PH (b. 1875) |
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lorenzo sumulong Filipino politician (1905-1997), PH (b. 1905) |
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| ioannes sumulong Philippine politician, PH (b. 1874) |
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| victor sumulong Filipino politician (1946-2009), PH (b. 1946) |
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| policarpio sumulong (1852-1925) |
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| demetria sumulong 1901 |
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| maría salomé carigma sumulong (1880-1956) |
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| valentín sumulong |
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| pedro sumulong |
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| maría sumulong |
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| luis sumulong |
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