• 
  OAK PARK JUDO CLUB
  OAK PARK LEISURE CENTRE, LICHFIELD ROAD WS9 9PQ
  Tel: 07765709716
• OAKLANDS JUDO CLUB
  OASIS ACADEMY, FAIRISLE ROAD,LORDSHILL SO16 8BY
  Tel: 02380 900619
• 
  OAKWOOD JUDO CLUB
  LINTON VILLAGE HALL, LINTON HILL ME17 4AW
  Tel:
• OGMORE VALLEY JUDO CLUB
  OGMORE VALLEY LIFE CENTRE, PENLLWYNGWENT, ABER ROAD CF32 7AJ
  Tel: 01656 737 129
• OMAGH JUDO CLUB
  C/O 15 BRACKEN VALE, OMAGH BT78 5RS
  Tel: 02882259335
• ONE AND ALL JUDO
  EPWORTH HALL, COLNAGEHALL TR13 8EB
  Tel: 0783732315
• ORCHARD PRIMARY SCHOOL
  CHAPEL STREET, KIRKBY IN ASHFIELD NG17 8JY
  Tel:
• OSAKA KWAI
  ALEXANDRIA LEISURE CENTRE, MAIN STREET G83 0NW
  Tel:
• OSPREY JUDO CLUB
  SPALDWICK COMMUNITY PRIMARY SC, ROYSTON AVENUE PE28 0TH
  Tel: 01480 891982
• OSTERLEY JUDO CLUB
  H.C.C., GRESHAM ROAD TW3 4BX
  Tel: 07976913818
• 
  OULDER HILL JUDO CLUB
  OULDER HILL COMMUNITY SCHOOL, HUDSONS WALK OL11 5EF
  Tel: 07740150073
• OXFORD BROOKES UNIVERSITY JUDO CLUB
  CENTRE FOR SPORT, CHENEY LANE OX3 0BD
  Tel: 07743358458
• 
  OXFORD CITY JUDO CLUB
  OXFORD UNIVERSITY SPORTS COMP, IFFLEY ROAD 0X4 1EQ
  Tel: 07967781663
• 
  OXFORD SCHOOLS OF JUDO
  ALL SAINTS CHURCH HOUSE, NEW HIGH STREET, HEADINGTON OX3 7AL
  Tel: 07913 515435
• OXFORD UNIVERSITY JUDO CLUB
  UNIVERSITY SPORTS COMPLEX, JACKDAW LANE OX4 1EQ
  Tel:
• O`OSHIMEYO JUDO CLUB
  COED-Y-DDERWEN COMMUNITY SCH, GELLIDEG ESTATE CF48 1LG
  Tel: 077371 83081