COI
COI is an abbreviation for:
- Coefficient of Inbreeding, see inbreeding coefficient
- Commission de l' Océan Indien, an East African economic organization
- Conflict of Interest, see Conflict of interest
- Cost-of- Illness Study, a form of cost-benefit analysis
- Office of the Coordinator of Information, a U.S. government agency during the Second World War
Coi is the surname of the following persons:
- Dennis Coi (around 1960-1987 ), Canadian figure skater
- Disambiguation
- Abbreviation