The boy's name Giannos \gi(an)-nos\ is a variant of John.
The baby name Giannos sounds like Giannis and Giannes. Other similar baby names are Gianny, Gianni and Gianney.
Giannos 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 Giannos. Click here to compare Giannos with related baby names.
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