| HMS | Hahira Middle School 
| Others |
| HMS | Hally Middle School, Detroit, Michigan
| Others |
| HMS | Hamann Motorsport
| Others |
| HMS | Hamburg Middle School
| Others |
| HMS | Hamden Middle School
| Others |
| HMS | Hamlin Middle School
| Others |
| HMS | Hammarskjold Middle School
| Others |
| HMS | Hampshire Middle School
| Others |
| HMS | Hampton Middle School
| Others |
| HMS | Hannover Motor Show
| Others |
| HMS | Hanover Middle School
| Others |
| HMS | Happy Mask Salesman
| Others |
| HMS | Hardin Middle School
| Others |
| HMS | Harding Middle School
| Others |
| HMS | Hardware Maintenance and Service
| Others |
| HMS | Hardware Maintenance Reference Manual
| Others |
| HMS | Hardware Meets Software
| Others |
| HMS | Hardware Memory Scrubber
| Others |
| HMS | Harmony Middle School
| Others |
| HMS | Harold Marshall Sylvester
| Others |
| HMS | Harris Middle School
| Others |
| HMS | Harrison Middle School
| Others |
| HMS | Hartley Melvin Sanborn
| Others |
| HMS | Hartsville Middle School
| Others |
| HMS | Harvard Medical School
| Others |
| HMS | Harvard Medical School's
| Others |
| HMS | Harvest Middle School
| Others |
| HMS | Hastings Middle School
| Others |
| HMS | Haverford Middle School
| Others |
| HMS | Hawk Mountain Sanctuary
| Others |
| HMS | Hawkins Middle School
| Others |
| HMS | Hays Middle School
| Others |
| HMS | Hazard Mapping System
| Others |
| HMS | Hazard Mitigation Survey
| Others |
| HMS | Hazardous Materials Safety
| Others |
| HMS | He's My Savior
| Others |
| HMS | Headend Management System
| Others |
| HMS | Headland Management System
| Others |
| HMS | Headland Middle School
| Others |
| HMS | Health Management System
| Others |
| HMS | Health Management Systems
| Others |
| HMS | Healthcare Management System
| Others |
| HMS | Healthcare Management Systems
| Others |
| HMS | Heavy Materiel Supply
| Others |
| HMS | Heavy melting scrap
| Others |
| HMS | Heavy Metal Scrap
| Others |
| HMS | Hedge Management System
| Others |
| HMS | Hedrick Middle School
| Others |
| HMS | Helmet Mounted Sight
| Others |
| HMS | Helsinki Motor Show
| Others |
| HMS | Hendersonville Middle School
| Others |
| HMS | Hennessey Motor Sports
| Others |
| HMS | Henry Middle School
| Others |
| HMS | Her Majesty s
| Others |
| HMS | Her Majesty's Service
| Others |
| HMS | Her Majesty's Ship
| Others |
| HMS | Her/His Majesty's Ship
| Others |
| HMS | Here's My Ship
| Others |
| HMS | Heritage Middle School
| Others |
| HMS | Herndon Middle School
| Others |
| HMS | Heroes of Medicine and Science
| Others |
| HMS | Heroically Manned Starship
| Others |
| HMS | Hickory Motor Speedway
| Others |
| HMS | Hidalgo Medical Services
| Others |
| HMS | High Mass Star
| Others |
| HMS | High-Magnitude Stressor
| Others |
| HMS | High-Mast System
| Others |
| HMS | Highland Middle School
| Others |
| HMS | Highly Migratory Species
| Others |
| HMS | Highpower Management System
| Others |
| HMS | Hillcrest Middle School
| Others |
| HMS | Hillsborough Middle School
| Others |
| HMS | Hillside Middle School
| Others |
| HMS | Hindu Marriage System
| Others |
| HMS | Hino Motors Sales
| Others |
| HMS | Hinsdale Middle School
| Others |
| HMS | His Majesty s
| Others |
| HMS | His Majesty's Service
| Others |
| HMS | His Majesty's Ship
| Others |
| HMS | His/Her Majesty's Ship
| Others |
| HMS | Historic Motor Sports
| Others |
| HMS | History Memory System
| Others |
| HMS | Hitachi Micro Systems
| Others |
| HMS | Hodg Man S
| Others |
| HMS | Hollowcore Manufacturing System
| Others |
| HMS | Home Management Service
| Others |
| HMS | Home Marketing Services
| Others |
| HMS | Home Media Server
| Others |
| HMS | Home Medical Service
| Others |
| HMS | Home Missionary Service
| Others |
| HMS | Home Multimedia Software
| Others |
| HMS | Homeowner Management Services
| Others |
| HMS | Homestead Miami Speedway
| Others |
| HMS | Homewood Middle School
| Others |
| HMS | Homicide at Mitre Square
| Others |
| HMS | Honda Motorcycle and Scooter
| Others |
| HMS | Hospital Management System
| Others |
| HMS | Hospitality Management Solution
| Others |
| HMS | Hotel Management Software
| Others |
| HMS | Hotel Management System
| Others |
| HMS | Hour Minute Second
| Others |
| HMS | Hours Minutes Seconds
| Others |
| HMS | Hours, Minutes, Seconds
| Others |
| HMS | Housing Management System
| Others |
| HMS | Howard Medical Science
| Others |
| HMS | Huawei Mobile Services
| Others |
| HMS | Hudson Middle School
| Others |
| HMS | Hughes Missile Systems
| Others |
| HMS | Hunting Melin Sons
| Others |
| HMS | Huntingdon Middle School
| Others |
| HMS | Huntington Middle School
| Others |
| HMS | Hurricane Middle School
| Others |
| HMS | Hutto Middle School
| Others |
| HMS | Hybrid Male Sterility
| Others |
| HMS | Hybrid Management Sub-layer
| Others |
| HMS | Hydraulic Module Speed
| Others |
| HMS | Hydrologic Micro Services
| Others |
| HMS | Hydrologic Modeling System
| Others |
| HMS | HyperMobility Syndrome
| Others |
| HMS | HyperMutation Somatic
| Others |
| HMS | Hypertension Management Software
| Others |
| HMS | Hyundai Motor Securities
| Others |
| HMS | Hyundai Motor Singapore
| Others |
| HMS | Hyundai Motorstudio
| Others |
| HMS | Mens' Organic Hemp Slacks (Hemp Mens' Slacks)
| Others |
| HMS | T. L. Handy Middle School
| Others |
| HMS | William Hubbard Middle School
| Others |