Family name Fonacier (Fonacier 
) , globally, is quite a rare surname. The surname Fonacier is habitual in Philippines, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Saudi Arabia. Measured by absolute frequency, it is commonest in Philippines, the United States, and United Arab Emirates.
| VARIANT | COUNTRY |
|---|---|
| Fonacier | Philippines, Canada, United Arab Emirates, United States, Saudi Arabia |
| santiago fonacier PH (b. 1885) |
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| thomas fonacier Filipino historian, PH (b. 1898) |
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larry fonacier Filipino basketball player, PH (b. 1982) |
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| luz fonacier researcher (ORCID 0000-0002-4381-1861) |
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