Family name Lontoc (Lontoc 
) , all over the world, is a common cognomen. The last name Lontoc is characteristic of Philippines, where it is quite a rare surname, United Arab Emirates, and Qatar, where it is a rare surname. In absolute terms, it is commonest in Philippines, the United States, and United Arab Emirates.
| VARIANT | COUNTRY |
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| Lontoc | United Arab Emirates, Canada, Philippines, United States, Saudi Arabia |
| leon lontoc filipino-American film and television actor (b. 1908) |
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| ramon lontoc Filipino chess player (1917-1997), PH (b. 1917) |
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| lontoc kirsten ashley b. Hong Kong Actress |
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