| Acronym | Definition |
|---|---|
| HJ | House Journal (U.S. Congress) |
| HJ | Hand Job |
| HJ | High Jump |
| HJ | Howard Johnson |
| HJ | Hitlerjugend |
| HJ | Honest John |
| HJ | Hey Joe (Jimi Hendrix song) |
| HJ | Hey Jude (Beatles song) |
| HJ | Heterojunction |
| HJ | Hungry Jack's Pty. Ltd. (fast food restaurant; Australia) |
| HJ | Head Job |
| HJ | Halal Journal (Islam) |
| HJ | Heroes Journey (game) |
| HJ | Hic Jacet (Latin: here lies) |
| HJ | Hotel Juliet (crypto key change; US DoD) |
| HJ | Hourly Jumps |
| HJ | Hybrid Join |
| HJ | Hilal-E-Jura'at (2nd Highest gallantry award given to officers of Pakistan Armed Forces.) |