Hajdúszoboszló is a town in Hajdú-Bihar county, Hungary, 19 kilometres southwest of county seat Debrecen. It is the third largest town in Hajd…Hajdúszoboszló is a town in Hajdú-Bihar county, Hungary, 19 kilometres southwest of county seat Debrecen. It is the third largest town in Hajdú-Bihar county. The name comes from a Slavic personal name Soběslav.