Cognomen Lontoh (Lontoh 
) , in the entire world, is quite a common family name. The family name Lontoh is habitual in Indonesia, where it is quite a rare surname, Netherlands, where it is a very rare surname, and Australia. In absolute terms, it is the most numerous in Indonesia, the United States, and Australia. Much less frequently, Lontoh is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Lontoh | Australia, United States, Netherlands, Indonesia, Malaysia |
| alfian herman lontoh Indonesian political candidate, ID |
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| sonita lontoh Indonesian businesswoman, US |
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| ananda lontoh Indonesian actress, ID (b. 1980) |
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| adelia lontoh Indonesian actress, ID (b. 1983) |
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| hayria lontoh Indonesian actress, ID (b. 1986) |
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| herrie lontoh association football player (1994-), ID (b. 1994) |
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Mr, Meily, Meidy, Mieke, Samdi, Shada, Sindy, Seidy, Sonny, Syane, Melva, Altje, Aneke, Adwin, Aaron, Cindy, Berny, Benny, Bobby, Bryan, Billy, Anton, Kevin, Maude, Marco, Ms, Mey, Lea, Joe, Egy, Syul, Ando, Roos, Rico, Marla, Gary, Lina, Lhya, Jack, Elti, Eske, Vera, Ossy, Odie, Yudy, Leon, and Keyra