HV

HV or Hv may stand for:
*Mitochondrial DNA Haplogroup HV.
*Burkina Faso, WMO country code (from the former French name, "Haute Volta").
*Hwair, or ƕ, a digraph used in transliterating the Gothic alphabet.
*Heimevernet, the Norwegian home guard.
*High Voltage.
*Home Video.
*Hrvatska Vojska, the Croatian army.
*Hudson Valley
*Hybrid Vehicles.
*Transavia, IATA airline code.
*In physics and chemistry, "hν" is the formula for a photon's energy in reactions, e.g.::2 H₂O₂ + "hν" → 2 H₂O + O₂:::"h" = Planck's constant (in J·s):::ν or f = Frequency (in Hz)::Note that ν here is actually the Greek letter nu, not the Latin letter v.
*Vickers Hardness, a hardness test.
*Humanae Vitae, a papal encyclical.