| HOS | A Hours Of Servitude 
| Others |
| HOS | Chos Malal, NE, Argentina
| Others |
| HOS | Hall Of Shame
| Others |
| HOS | Handel Ondersteunend Systeem
| Others |
| HOS | Hands On Sacramento
| Others |
| HOS | Hands On Stick
| Others |
| HOS | Hardened Oil Syndrome
| Others |
| HOS | Harvest Options Study
| Others |
| HOS | Harvester Of Sorrow
| Others |
| HOS | Haryana Open School
| Others |
| HOS | Hawaiian Orchid Society
| Others |
| HOS | Hda One Sim
| Others |
| HOS | Head Of School
| Others |
| HOS | Head Of Sector
| Others |
| HOS | Head Of Security
| Others |
| HOS | Head Of State
| Others |
| HOS | Head of The security
| Others |
| HOS | Heads Of School
| Others |
| HOS | Health Outcome Survey
| Others |
| HOS | Health Outcomes Sciences
| Others |
| HOS | Health Outcomes Survey
| Others |
| HOS | Hearts of Space
| Others |
| HOS | Hellenic Ornithological Society
| Others |
| HOS | Helping Others Succeed
| Others |
| HOS | Hidden Object Scene
| Others |
| HOS | High Level Operations Software
| Others |
| HOS | High Order Software
| Others |
| HOS | High-Order Software
| Others |
| HOS | Higher Order Software
| Others |
| HOS | Higher Order Statistics
| Others |
| HOS | Higher Order Structure
| Others |
| HOS | Highway Organization System
| Others |
| HOS | Holiday Open Studio
| Others |
| HOS | Home Of the Sparrow
| Others |
| HOS | Home Office Specimen
| Others |
| HOS | Honeywell Operating System
| Others |
| HOS | Honeywell Operating Systems
| Others |
| HOS | Hoosier Southern Railroad
| Others |
| HOS | Horizon Se
| Others |
| HOS | Hornbeck Offshore Services
| Others |
| Hos | Hosea
| Others |
| HOS | Hospitals
| Others |
| HOS | Hour Of Service
| Others |
| HOS | Hours Of Service
| Others |
| HOS | House Of Shadows
| Others |
| HOS | House Of Spades
| Others |
| HOS | House of Staunton
| Others |
| HOS | House of Sun
| Others |
| HOS | Houston Amtrak Station
| Others |
| HOS | Hruby Orbital Systems
| Others |
| HOS | Hrvatske Oslobodilacke Snage
| Others |
| HOS | Huge Old Shroom
| Others |
| HOS | Human Operating System
| Others |
| HOS | Human Organ Systems
| Others |
| HOS | Human Oriented System
| Others |
| HOS | Humanoid Object Show
| Others |
| HOS | Humilitas Occidit Superbiam
| Others |
| HOS | Hunk O Sh
| Others |
| HOS | Hunter Outcome Survey
| Others |
| HOS | Husband Over Shoulder
| Others |