Last name Fido (Fada 
, Fides 
, Fido 
) , globally, is a common cognomen. The cognomen Fido is habitual in Slovakia, where it is quite a rare surname, Cameroon, and Nigeria. Measured by absolute frequency, it is commonest in Nigeria, Egypt, and Cameroon. Also, Fido is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Fada | China, Egypt, Nigeria, Pakistan, Democratic Republic of the Congo |
| Fides | Indonesia, Philippines, Nigeria, Tanzania, Democratic Republic of the Congo |
| Fido | China, Egypt, Nigeria, Poland, Democratic Republic of the Congo |
| Фидо | Armenia, Russia, Ukraine |
| ignacy fido (b. 1846) |
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| martin fido British writer, GB (b. 1939) |
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| beata fido Polish actor, PL (b. 1967) |
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| dean fido researcher |
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| christine fido Austrian association football player, AT |
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| m. fido |
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