Hydro

Hydro may refer to:
 * Hydrogen
 * Hydro, Oklahoma
 * hydro
 * BC Hydro
 * Hydro-Québec
 * Hydro One in Ontario
 * Ontario Hydro
 * Manitoba Hydro
 * Newfoundland and Labrador Hydro
 * Canadian Hydro Developers
 * Toronto Hydro
 * Snowy Hydro Limited
 * Hydro Tasmania
 * Norsk Hydro
 * Hydro (fuel station)
 * Hydro Majestic Hotel in New South Wales, Australia
 * D/F Hydro
 * Hydroseeding

Hydro may also be used for:
 * Hydroelectricity
 * A shortened version of Hydropathic establishment
 * A slang term for hydroponically-grown cannabis
 * A ring name of professional wrestler Jamar Shipman