Russian Uncle Vanya becomes niece Vanja in Sweden: an intriguing switch. 

Vanja

Scandinavian

Goodbye <em>Uncle Vanya</em> and hello...It Girl baby name? It's true — style icon Chloë Sevigny chose the name Vanja for her son, born in 2020. The name honors Vanja's paternal heritage — Chloë's partner is the Croatian-born gallerist Siniša Mačkovic.
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Vanja is the Croatian variation of Vanya, a Russian name that originated as a nickname for Ivan. In Scandinavia, the Vanja spelling is frequently used for girls, while in Serbia and Croatia it is considered unisex.