| পূর্ণ সদস্য |
| রাষ্ট্র |
বছর |
আফগানিস্তান, Islamic Republic of || 1969 |
suspended 1980 - March 1989 |
আলজেরিয়া, People's Democratic Republic of |
1969 |
চাদ, Republic of |
1969 |
মিশর, Arab Republic of |
1969 |
suspended May 1979 - March 1984 |
গিনি, Republic of |
1969 |
ইন্দোনেশিয়া, Republic of |
1969 |
ইরান, Islamic Republic of |
1969 |
জর্দান, Hashemite Kingdom of |
1969 |
কুয়েত, State of |
1969 |
লেবানন, Republic of |
1969 |
লিবিয়া, Socialist People's Libyan Arab Jamahiriya |
1969 |
মালয়েশিয়া |
1969 |
| Template:MLI, Republic of |
1969 |
| Template:MRT, Islamic Republic of |
1969 |
| Template:MAR, Kingdom of |
1969 |
| Template:NER, Republic of |
1969 |
পাকিস্তান, Islamic Republic of |
1969 |
| Template:PSE, State of |
1969 |
ইয়েমেন আরব প্রজাতন্ত্র |
1969 |
from 1990 as Republic of Yemen united with People's Democratic Republic of Yemen |
| Template:SAU, Kingdom of |
1969 |
Senegal, Republic of |
1969 |
| Template:SDN, Republic of the |
1969 |
| Template:SOM |
1969 |
| Template:TUN, Republic of |
1969 |
তুরস্ক, Republic of |
1969 |
| Template:BHR, State of |
1970 |
| Template:OMN, Sultanate of |
1970 |
| Template:QAT, State of |
1970 |
| Template:SYRn Arab Republic |
1970 |
| Template:ARE, State of |
1970 |
| Template:SLE, Republic of |
1972 |
বাংলাদেশ, People's Republic of |
1974 |
| Template:GAB, Republic of |
1974 |
| Template:GMB, Republic of the |
1974 |
| Template:GNB, Republic of |
1974 |
| Template:UGA, Republic of |
1974 |
| Template:BFA |
1975 |
ক্যামেরুন, Republic of |
1975 |
| Template:COM, Federal Islamic Republic of the |
1976 |
ইরাক, Republic of |
1976 |
| Template:MDV, Republic of |
1976 |
| Template:DJI, Republic of |
1978 |
| Template:BEN, Republic of |
1982 |
| Template:BRU Darussalam, Sultanate of |
1984 |
নাইজেরিয়া, Federal Republic of |
1986 |
| Template:AZE, Republic of |
1991 |
আলবেনিয়া, Republic of |
1992 |
| Template:KGZ, Republic of |
1992 |
| Template:TJK, Republic of |
1992 |
| Template:TKM, Republic of |
1992 |
Zanzibar |
January 1993 |
withdrew August 1993 |
| Template:MOZ, Republic of |
1994 |
| Template:KAZ, Republic of |
1995 |
| Template:UZB, Republic of |
1995 |
| Template:SUR, Republic of |
1996 |
| Template:TGO, Republic of |
1997 |
| Template:GUY, Republic of |
1998 |
আইভরি কোস্ট, Republic of |
2001 |
| Observer States |
| Template:BIH |
1994 |
| Template:CAF |
1997 |
| Template:TRNC (Turkish Cypriot State) |
1979 |
| Template:THA, Kingdom of |
1998 |
রাশিয়াn Federation |
2005 |
| Observer Muslim Organizations and Communities |
| Moro National Liberation Front |
1977 |
| Observer Islamic Institutions |
| Parliamentary Union of the OIC Member States |
2000 |
| Islamic Conference Youth Forum for Dialogue and Cooperation |
2005 |
| Observer International Organizations |
| League of Arab States |
1975 |
| United Nations |
1976 |
| Non-Aligned Movement |
1977 |
| Organization of African Unity |
1977 |
| Economic Cooperation Organization |
1995 |