For Opelka there are 8 on Yasni with different names.
Among the most common last names on Yasni Opelka is on position 4519.
About people with vocational tschech Opelka Oil-cake "for the baker or nickname for their favorite pastry. Cf. http://www.duden.de/duden-suche/werke/famnamen/000/034/Opelka.34526.html (05/02/2009)
(Sent from: Opelka Reinhard)