Czech Open
Czech Open is a name given to many sports events in the Czech Republic, including:

Czech International, a badminton tournament formerly known as the Czech Open
Czech Open (darts), a BDO sanctioned darts tournament
Czech Open (floorball), a floorball tournament
Czech Open (golf), a European Tour golf tournament
Czech Open (tennis), an ATP Challenger Tour tennis tournament
Prague Open (1987–1999), an ATP Challenger Tour tennis tournament
I.ČLTK Prague Open, an ATP Challenger Tour and WTA International Tournaments tennis tournament