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Worldwide, Ilonka (Ilonka ) is quite a rare feminine first name. The first name Ilonka is habitual in Croatia, where it is quite a common female name, the Dominican Republic, where it is quite a rare female name, and Bulgaria. In absolute terms, the name is most common in Germany, Croatia, and South Africa. Much less frequently, Ilonka is the last name as well as the forename.
Nel, Vargas, Visser, Venter, Farkas, Ilieva, Ulrich, Schmidt, Aylward, Boerkamp, Horvat, Király, Jimenez, Ivanova, Comstock, Robinson, Gangadin, Gonzalez, Inerbichler, Schneider, Castaneda, Lütjen, Jansen, Gonczi, Garcia, Mace, Berg, Papp, Rank, Diaz, Jong, Nagy, Szabo, Barba, Beers, Perez, Ramos, Rooij, Doeve, Groot, Varga, Weber, Seamon, Becker, Kovač, Dekker, Rodriguez, and Espaillat