The boy's name Eustachius \e(u)-sta-chius\ is a variant of Eustace.
The baby name Eustachius sounds like Eustachios, Eustachy and Eustache. Other similar baby names are Eustatius and Eustasius.
Eustachius is a very rare male first name and a very rare surname (source: 1990 U.S. Census). Displayed below is the baby name popularity trend for the boy's name Eustachius. Click here to compare Eustachius with related baby names.
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