| Abbreviation | Definition |
|---|---|
| GPT | Grosse Pointe Theatre |
| GTC | Grove Theater Center |
| GVT | Greenbrier Valley Theatre |
| HART | Hillsboro Artists' Regional Theatre |
| HCT | Hale Centre Theatre |
| HDAT | Hill Dance Academy Theatre |
| HEAT | High End Audio Theater |
| HHOT | Hubbard Hall Opera Theater |
| HHTI | Hip Hop Theatre Initiative |
| HIS | Hindi Indian Stage |
| HJT | Harper Joy Theatre |
| HMT | Her Majesty's Theatre |
| HMT | His Majesty's Theatre |
| HMT | Home Made Theater |
| HOT | Home Office Theatre |
| HRST | Harvard Radcliffe Summer Theatre |
| HSTC | Holly Springs Theatre Company |
| HTAC | Haddonfield Theater Arts Center |
| HTCL | Home Theater and Cabinet Lighting |
| HTD | Home Theater Direct |