NCDI Views 8 meanings found NCDI is used for a national cyber‑defense program, a debate institute in Northern California, a former computer‑hardware company, a community‑development nonprofit, and a dance school in North Carolina. Miscellaneous National Capital Diagnostic Imaging Community National Community Development Institute National Community Development Initiative Governmental Northern California Debate Institute Computing National Cyber Defense Initiative Northern Centre for Digital Imaging Business Network Computing Devices, Inc. Sports North Carolina Dance Institute