Czech
Proper noun
Darja f
-  A female given name, cognate to English Daria.
 
Declension
Declension of Darja
|   | 
 singular | 
 plural | 
|  nominative | 
 Darja
 | 
 Darji
 | 
|  genitive | 
 Darji
 | 
 Darjí
 | 
|  dative | 
 Darji, Darje
 | 
 Darjám
 | 
|  accusative | 
 Darju
 | 
 Darji
 | 
|  vocative | 
 Darjo
 | 
 Darji
 | 
|  locative | 
 Darji, Darje
 | 
 Darjách
 | 
|  instrumental | 
 Darjou
 | 
 Darjami
 | 
 
 
 
Latvian
Etymology
First recorded as a given name of Latvians in the end of the 19th century. From Russian Да́рья (Dárʹja, “Daria”).
Proper noun
Darja f
-  A transliteration of the Russian female given name Дарья (Darʹja).
 
References
-  Klāvs Siliņš: Latviešu personvārdu vārdnīca. Riga "Zinātne" 1990, ISBN 5-7966-0278-0
 
-   Population Register of Latvia: Darja was the only given name of 2544 persons in Latvia on January 1st 2011, including Russian speakers.