HOTO
| Acronym | Definition |
|---|---|
| HOTO | Health Of The Oceans (GOOS) |
| HOTO | Heart of the Ozarks (Fayetteville, AR) |
| HOTO | Head of the Ohio (Pittsburgh, PA rowing race) |
| HOTO | Heart of the Oak (Diablo II gaming) |
| HOTO | Heartbeat of the Ozarks Classic Car Club (Bentonville, AR) |
| HOTO | Head of the Occoquan (rowing race) |
| HOTO | Hand Over/Take Over |
| HOTO | Hood Open/Trunk Open (automobiles) |