| HHM | Haddonfield Historical Museum 
| Others |
| HHM | Hafen Hamburg Marketing
| Others |
| HHM | Haiti Health Ministries
| Others |
| HHM | Half Hourly Meter
| Others |
| HHM | Hamlin Hamlin and McGill
| Others |
| HHM | Hamlin Hamlin McGill
| Others |
| HHM | Hand Held Module
| Others |
| HHM | Happy Hour Mom
| Others |
| HHM | Hardy Heck Moore
| Others |
| HHM | Heart Health Meter
| Others |
| HHM | Heart Health Monitor
| Others |
| HHM | Hector Hard Mode
| Others |
| HHM | Helping Hands Monkeys
| Others |
| HHM | Henderson Hutcherson McCullough
| Others |
| HHM | Henderson, Hutcherson, & McCullough, PLLC
| Others |
| HHM | Hennepin History Museum
| Others |
| HHM | Heritage Harbor Museum
| Others |
| HHM | Hersha Hospitality Management
| Others |
| HHM | Hierarchical Holographic Modeling
| Others |
| HHM | HIP HOP Mixtapes
| Others |
| HHM | Hip Hop Movement
| Others |
| HHM | Hip-Hop Media
| Others |
| HHM | Hispanic Heritage Month
| Others |
| HHM | Ho Hung Ming USA, Inc.
| Others |
| HHM | Homeless and Highly Mobile
| Others |
| HHM | Hommage to Henry Machine
| Others |
| HHM | Hope House Ministries
| Others |
| HHM | Horror Hockey Masks
| Others |
| HHM | Household Hazardous Materials
| Others |
| HHM | HTML Help Maker
| Others |
| HHM | Humoral Hypercalcemia of Malignancy
| Others |
| HHM | Hypoglycemia Hyperglycemia Minimizer
| Others |
| HHM | Hyundai Hydrogen Mobility
| Others |