AHOoptimist
North America & Central
Antilles, Netherlands (AHO)
YACHT CLUB DURRES
Europe
ALBANIA (ALB)
Fédération Algérienne de Voile
Africa
Algeria (ALG)
Federacio Andorrana de Vela
Europe
Andorra (AND)
Antigua Yacht Club
North America & Central
Antigua (ANT)
Asociación Optimist Argentina
South America
Argentina (ARG)
Azerbaijan Sailing Federation - SFA
Europe
Azerbaijan (AZE)
Bahamas Optimist Sailing Association
North America & Central
Bahamas (BAH)
Dinghy Optimist Class Belgium
Europe
Belgium (BEL)
Bermuda Optimist Dinghy Association
North America & Central
Bermuda (BER)
Belize Sailing Association (Optimist Committee)
North America & Central
Belize (BIZ)
Belarus Sailing Federation
Europe
Belarus (BLR)
Associacao Brasileira da Clase Optimist
South America
Brazil (BRA)
Bulgarian Sailing Federation
Europe
Bulgaria (BUL)
Canadian Optimist Dinghy Association (CODA)
North America & Central
Canada (CAN)
Cayman Islands Sailing Club
North America & Central
Cayman Islands (CAY)
Club Optimist Chile
South America
Chile (CHI)
Chinese Yachting Association
Asia
China, PR (CHN)
Federacion Colombiana de Vela
South America
Columbia (COL)
La Fragata Sailing Club
North America & Central
COSTA RICA (CRC)
HRVATSKO UDRUŽENJE KLASE OPTIMIST
Europe
Croatia (CRO)
Federación Cubana de Vela
North America & Central
Cuba (CUB)
Cyprus Sailing Federation
Europe
Cyprus (CYP)
Czech Optimist Dinghy Association
Europe
Czech Republic (CZE)
Optimist Class Denmark
Europe
Denmark (DEN)
Asociación Dominicana de Optimist
North America & Central
Dominican Republic (DOM)
Asosiacion de Optimist del Ecuador
South America
Ecuador (ECU)
Salvador Sailing Association
North America & Central
El Salvador (ESA)
Estonian Yachting Union
Europe
Estonia (EST)
Promotion Optimist
Europe
France (FRA)
UK International Optimist Class Association
Europe
Great Britain (GBR)
Grenada Sailing Association
North America & Central
Grenada (GRN)
Federación Nacional de Navegación a Vela
North America & Central
Guatemala (GUA)
Hungarian Optimist Association
Europe
Hungary (HUN)
Indonesian Sailing Federation
Asia
Indonesia (INA)
Icelandic Sailing Association
Europe
Iceland (ISL)
Israel Optimist Class Association
Europe
Israel (ISR)
Virgin Island Optimist Dinghy Association (VIODA)
North America & Central
US Virgin Islands (ISV)
Royal British Virgin Islands Yacht Club
North America & Central
British Virgin Islands (IVB)
Kenya Yachting Association
Africa
Kenya (KEN)
Sailing Federation of Kyrgyzstan
Asia
Kyrgyzstan (KGZ)
Kuwait Sea Sport Club
Asia
Kuwait (KUW)
Libyan Sailing Federation
Africa
Libya (LBA)
St. Lucia Sailing Association
North America & Central
St Lucia (LCA)
Lithuanian Optimist Association
Europe
Lithuania (LTU)
Malaysia Sailing Association
Asia
Malaysia (MAS)
Asociación Mexicana de Veleros Clase Optimist (AMVCO)
North America & Central
Mexico (MEX)
Montenegro Sailing Federation
Europe
Montenegro (MNE)
Yacht Club de Monaco
Europe
Monaco (MON)
Mauritius Yachting Association
Africa
Mauritius (MRI)
Optimist Club Nederland
Europe
Netherlands (NED)
Optimistas de Nicaragua
North America & Central
NICARAGUA (NIC)
Norsk Optimistjolleklubb (NOK)
Europe
Norway (NOR)
Oman Sailing Committee
Asia
Oman (OMA)
Asociacion Clase Optimist del Paraguay
South America
Paraguay (PAR)
Asociación Peruana de Optimist
South America
Peru (PER)
Phillipines Yachting association
Asia
Philippines (PHI)
Puerto Rico Optimist Dinghy Association
North America & Central
Puerto Rico (PUR)
Optimist Sailing SA
Africa
South Africa (RSA)
Fédération Sengalaise de Voile
Africa
Senegal (SEN)
Seychelles Yachting Association
Africa
Seychelles (SEY)
Singapore Sailing Federation
Asia
Singapore (SIN)
St. Kitts Youth Sailing Association
North America & Central
ST KITTS (SKN)
Slovenian Sailing Federation
Europe
Slovenia (SLO)
Federazione Sammarinese de Vela
Europe
San Marino (SMR)
Serbian Sailing Association
Europe
Serbia (SRB)
Yachting Association of Sri Lanka
Asia
Sri Lanka (SRI)
Sudan Sailing Federation
Africa
Sudan (SUD)
Swiss Optimist
Europe
Switzerland (SUI)
Slovak Optimist Association
Europe
Slovakia (SVK)
Svenska Optimistjolleforbundet
Europe
Sweden (SWE)
Tahiti Optimist Promotion
Oceania
Tahiti (TAH)
Tanzania Optimist Dinghy Association
Africa
Tanzania (TAN)
Chinese Taipei Sailing Association
Asia
Chinese Taipei (TPE)
Trinidad & Tobago Sailing Association (TTSA)
North America & Central
Trinidad and Tobago (TTO)
Fédération Tunisienne de Voile
Africa
Tunisia (TUN)
Turkish Yachting Federation
Europe
Turkey (TUR)
UAE Sailing & Rowing Federation
Asia
United Arab Emirates (UAE)
Asociación Uruguaya de Optimist
South America
Uruguay (URU)
US Optimist Dinghy Association (USODA)
North America & Central
USA (USA)
Federación Venezolana de Vela
South America
Venezuela (VEN)
Bequia Youth Sailors
North America & Central
ST VINCENT AND THE GRENADINES (VIN)
Optimist Class Racing Association
Africa
Zimbabwe (ZIM)