Idro may refer to:
- Places, Italy
- Idro, Lombardy, a comune in the Province of Brescia
- Lake Idro, a subalpine lake in the Provinces of Brescia and Trento
- Organisations
- IDRO, Industrial Development and Renovation Organization of Iran
- IDRO, Internal Dobrujan Revolutionary Organisation
- People
- Richard Idro, a Ugandan pediatric neurologist.
