Worldwide, Eustáquio (Eustaquio 
, Eustachius 
, Eustáquio 
) is a common masculine first name. The first name Eustáquio is habitual in Equatorial Guinea, where it is quite a common male name, Peru, and Argentina. Not in comparison with a country's population, it most frequently occurs in Mexico, Brazil, and Philippines. Also, Eustáquio is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Eustaquio | Spain, Philippines, Brazil, Mexico, Argentina |
| Eustachius | Tanzania, Brazil, Indonesia, United States, Germany |
| Eustáquio | Brazil, United States, Canada, Portugal |
Efstathios, Eustac, Eustacchio, Eustace, Eustach, Eustache, Eustachio, Eustachy, Eustacio, Eustacius, Eustacjusz, Eustahije, Eustaqui, Eustasio, Eustasius, Eustathios, Eustazio, Eustazy, Eustațiu, Eustácio, Evstafy, Evstahij, Ostap, Stathis, Ευστάθιος, Στάθης, Астафий, Евстатий, Евстафий, Евстахий, Остап, Остафий, Стафей, Эсташ, Юстас, and Євстафій
|
eustáquio van lieshout Dutch priest and pastor in Brazil, NL (b. 1890) |
|
|
eustáquio gomes Brazilian journalist (1952-2014), BR (b. 1952) |
|
| eustáquio reis Brazilian economist, BR (b. 1947) |
|
|
| eustáquio antônio meireles de oliveira politician from Brazil, BR (b. 1950) |
|
|
| eustáquio josé pereira politician from Brazil, BR (b. 1953) |
|
|
| eustáquio neves Brazilian photographer, BR (b. 1955) |
|
|
| eustáquio afonso araújo BR (b. 1946) |
|
|
| eustáquio chagas de paiva (b. 1960) |
|
|
| eustáquio grilo Brazilian composer, BR |
|
|
| eustáquio s dias researcher |
|
|
| eustáquio januário quibato Angolan diplomat |
|