KDDI (disambiguation)
KDDI (abbreviation of Kokusai Denshin Denwa International; lit. 'International Telegraph and Telephone') is a Japanese telecommunications operator.
KDDI may also refer to:
- KDDI Mobile, a former mobile phone service operated in the United States
- KDDI India Private Limited, an Indian subsidiary of KDDI
- KDDI Designing Studio, a consumer showroom in Harajuku