- Yacht Club PARS, z.s.
- YMCA Braník
- YPG Evropa, z.s. v likvidaci
- Yachtclub Pardubice, z.s.
- Yamaha Star Czech Republic z.s. "v likvidaci"
- Yacht club Rozkoš v likvidaci
- Yacht club Bystrc Brno z.s.
- YACHT CLUB Dvořiště - Lišov, z.s.
- YC PanCzech, z.s.
- YACHT CLUB MARINA VLTAVA, z.s.
- YAKSHA GYM PLZEŇ z.s.
- YMCA Ostrava-Poruba
- YMCA Strmilov
- YettiOn, z.s.
- YMPAL- SPORT, o.s.
- YMCA Olomouc
- Young Czech Arbitration Professionals, z.s.
- Youth in Czech Republic, z.s.
- Young Golf Champions z.s.
- YMCA Pelhřimov, z. s.
- YACHT CLUB SILŮVKY, z.s.
- yeah-but-still z.s.
- YACHT CLUB DOKSY, spolek
- YC Lískovec z.s.
- YMCA Nejdek
- Yves Hélory, z. s.
- YOUNG TALENTS, z. s.
- Young Glass Symposium z.s.
- Young Riders & Horses z.s.
- YMCA Hradec Králové
- YACHT CLUB SaS, z.s.
- Yvonne Lombardo
- YACHT CLUB LESKOVEC, z.s.
- YACHT CLUB MILEVSKO z.s.
- Yachtclub Jinočany, z.s.
- YANDEROV, z. s.
- Young Planeswalkers
- Yettey v likvidaci
- YOUNGTIMER - Česká republika, z.s.
- YACET-MLÁDEŽ, UMĚNÍ A KREATIVITA V EVROPĚ
- YC Píšťany - vodní sporty
- YACHTCLUB BANÍK OSTRAVA
- Yachting CZE, z.s.
- YC to Stella z.s.
- YogafestZLÍN z.s.
- Yacht club Ústí nad Labem z.s.
- YMCA Sever, z. s.
- Yacht Club Kotva Praha, z.s.
- yo-yo, z. s.
- YACHT CLUB SALAŠ