Vanja Vonckx (born 12 February 1973) is a former Belgian racing cyclist. She finished in second place in the Belgian National Road Race Championships in 1999. She also competed in the women's road race at the 2000 Summer Olympics.
Vanja Sutlić (18 February 1925 – 15 December 1989) was a Croatian philosopher. He was regarded as the father of the Heideggerian philosophy in Yugoslavia and its successor states, especially in Croatia and Slovenia.
Vanja Radauš (29 April 1906, Vinkovci, Kingdom of Croatia-Slavonia – 24 April 1975) was a Croatian sculptor, painter and writer. During World War II he participated in the National Liberation movement. He was a professor at the Academy of Fine Arts from 1945 to 1969.
@earthnut is right, Vanja is also Slovene, used for both genders in Slovenia. The popularity chart for Slovenia should be a further indicator of that. [noted -ed]