Organizations
- DCI (Wizards of the Coast) (formerly known as Duelists' Convocation International), the organization that sanctions official tournaments of Wizards of the Coast games, most notably Magic: The Gathering
- Defence for Children International, an independent non-governmental organisation that operates globally to promote and protect children’s rights
- Dental Council of India, an organisation which regulates dental education in India
- Dialysis Clinic, Inc, a nonprofit medical organization headquartered in Nashville, Tennessee
- Drum Corps International, the nonprofit organization governing modern junior drum and bugle corps
- DCI Global Partnerships, the community and work associated with DCI Trust—a UK charity committed to mobilising Christian leaders, providing micro-loans for the economically poor, networking a global Christian constituency and giving to bless the poor of the earth.
- Distressed Children & Infants International, a nonprofit organization serving disadvantaged children in South Asia.
Read more about this topic: DCI