DCV may refer to:

Organisations Basque Christian Democracy (Democracia Cristiana Vasca), a Basque Country Christian-democratic party Deutscher Caritasverband, German charity organisation and member of Caritas Europa and Caritas Internationalis

Science and technology Demand controlled ventilation, a feedback control method to maintain indoor air quality Directional control valve, a part of hydraulic and pneumatic systems; see Hydraulic machinery Drosophila C virus, a viral disease of the genus Cripavirus

Other uses 605 (DCV in Roman numerals), a common year starting on Friday of the Julian calendar 605 (number), a harshad number in Roman numerals DCV, a generic ship prefix for deepwater construction vessels