Rajka is a village in Győr-Moson-Sopron County, Hungary. The village has large Slovak and German minorities. The name comes from the Slavi…Rajka is a village in Győr-Moson-Sopron County, Hungary. The village has large Slovak and German minorities. The name comes from the Slavic personal name Rajko, Rajka. 1297 Royka. Rajka is located in the Little Hungarian Plain 17 kilometres north-west of Mosonmagyaróvár, near the point where the borders of Hungary, Austria, and Slovakia join. M15 motorway, Highway 150, and the Budapest–Hegyeshalom–Rajka railway line all cross the village. The Hungarian-Slovak border crossing between Rajka and Čunovo was lifted on 21 December 2007, when Hungary and Slovakia acceded to the Schengen Area.