Cognomen Randriamamonjy (Randriamamonjy 
) , worldwide, is quite a rare family name. The last name Randriamamonjy is habitual in Madagascar, where it is quite a common surname, France, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Randriamamonjy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Randriamamonjy | United States, France, Madagascar |
| frederic randriamamonjy Malagasy politician and writer, MG (b. 1932) |
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| esther randriamamonjy Malagasy writer, MG (b. 1933) |
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| marcellin randriamamonjy (b. 1963) |
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Ny, Tsiferana, Anjatiana, Hariseheno, Lucienne, Ravaomalala, Margaret, Esthere, Niriana, Laurent, Germain, Ndranto, Judith, Rafidy, Ravaka, Nantenaina, Mirana, Voahirana, Naina, Tinah, Julie, Josee, Antsa, Andry, Maeva, Manda, Mario, Nivo, Dina, Rado, Aina, Maggie, and Heriniaina