- Yellow Hills z. s.
- YELLOW FEVER CLUB o.s.
- YOUTH LEADERSHIP EUROPE v likvidaci
- YEAH, z.s.
- YACHT CLUB RAZOVÁ z. s.
- YOUNGTIMER CLASSIC SPORT CARS CLUB, o.s.
- YETI RESCUE,z.s.
- Yacht club Jeseník z.s.
- Y. C. Zlín v likvidaci
- YFU CZ, z.s.
- YELLOW LINE z.s.
- Yacht klub Mělník z.s.
- Youth for Youth, z.s.
- Youth and World z. s.
- Yacht club Labe z. s.
- YC RODOP, z.s.
- Yacht Club Nautilus Praha
- YROBAT z.s.
- Youth For Future, z.s.
- Young Leaders CZ z.s.
- YMCA Podivín, z. s.
- Young snipers team, z.s. "v likvidaci"
- Yacht klub Strážnice, z.s.
- Young Folks o.s.
- YACHT CLUB SALAŠ
- Yoga Slavičín, z.s.
- Yacht Club Slezan Opava, z.s.
- Yoga House, z.s.
- YACHT CLUB KOLODĚJE
- Young MBSA
- YMCA Letohrad
- YORE - Občanské sdružení přátel historie
- Yacht Club Nový Jičín z.s.
- Youth z.s.
- Yoda Mentorship Programme, z.s.
- Yacht Club Staré Město Praha, z.s.
- YMCA - Živá rodina
- Yves Hélory, z. s.
- Yangame Gym
- YC to Stella z.s.
- YACHT CLUB LESKOVEC, z.s.
- Yacht Club Baník Most z. s.
- Yacht Club Tachov z.s.
- Yankee and Confederate Artillery Club Y.A.K.A.C.
- YACHTCLUB PASOHLÁVKY z. s.
- YACHT CLUB A.N.V.
- Young Golf Champions z.s.
- YACHT CLUB Dvořiště - Lišov, z.s.
- Y.C. Nové Sedlo
- Yacht Club Lipno nad Vltavou, z.s.