Non-Government or Civil Society Organisations
- IAS
- see International AIDS Society (1988 - ) - ICASO
- see International Council of AIDS Service Organizations (1991 - ) - ICG
- see International Crisis Group (1995 - ) - ICW
- see International Community of Women Living with HIV/AIDS (1992 - ) - IFRC
- see International Red Cross and Red Crescent Societies (1919 - ) - Indian Network for People Living with HIV/AIDS (1997 - )
- INP+
- see Indian Network for People Living with HIV/AIDS (1997 - ) - Institute of Social Development Studies
- International AIDS Society (1988 - )
- International Center for Research on Women (1976 - )
- International Community of Women Living with HIV/AIDS (1992 - )
- International Council of AIDS Service Organizations (1991 - )
- International Crisis Group (1995 - )
- International HIV/AIDS Alliance (1993 - )
- International Planned Parenthood Federation (1952 - )
- International Red Cross and Red Crescent Societies (1919 - )
- International Save the Children Alliance (1997 - )
- IPPF
- see International Planned Parenthood Federation (1952 - ) - ISDS
- see Institute of Social Development Studies