Throughout the world, Tranquilino (Tranquilino 
) is a common boy's forename. The given name Tranquilino is habitual in Philippines, where it is quite a rare boy's name, Mexico, and Nicaragua. Measured by absolute frequency, it is the most numerous in Mexico, Philippines, and Argentina. Also, Tranquilino is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Tranquilino | Honduras, Mexico, Brazil, Argentina, Philippines |
| tranquilino de bonilla y herdocia Costa Rican politician, CR (b. 1797) |
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| tranquilino luna American politician (1849-1892), US (b. 1849) |
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| tranquilino leovigildo torres Brazilian lawyer (1859-1896), BR (b. 1859) |
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tranquilino mello Paraguayan association football player, PY (b. 1922) |
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| tranquilino mendoza Mexican military personnel (1888-1959), MX (b. 1888) |
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| tranquilino garcete Paraguayan footballer, PY (b. 1907) |
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tranquilino valdés ES |
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| tranquilino p. udarbe |
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