HO
- ho – (s) Hiri Motu language (ISO 639-1 code)
- Ho – (s) Holmium
- HO – (s) Honduras (FIPS 10-4 country code)
- HOLLAND – (a) Hope Our Love Lasts And Never Dies
- HOMES - the Great Lakes; Huron, Ontario, Michigan, Erie, Superior
- HOPI – (a) Hybrid Optical and Packet Infrastructure (see Internet2, Abilene Network)
- HoReCa – (a) Hotel, Restaurant and Catering
- HORIZON – (p) Hélicoptère d'observation radar et d'investigation sur zone (French, Zone Investigation and Radar Observation Helicopter)
- HOSTAC – (a) Helicopter Operations from Ships Other Than Aircraft Carriers
- HOT – (a) Highly Optimised Tolerance
- HOTAS – (a) Hands on throttle-and-stick
- HOTT or HotT – (i) Hordes of the Things (miniature fantasy wargaming rules; a play on The Lord of the Rings)
- HOV – (i) High Occupancy Vehicle
Read more about this topic: List Of Acronyms And Initialisms: H