CACTUS
| Acronym | Definition |
|---|---|
| CACTUS | Capital Area / Central Texas Unix Society |
| CACTUS | Converted Atmospheric Cherenkov Telescope Using Solar-2 (observatory; Daggett, CA) |
| CACTUS | Computer Aided Credentials of Teachers in Utah Schools (database; Utah State Office of Education) |
| CACTUS | Calculator and Computer Technology User Service (website; teacher services) |
| CACTUS | Cohousing Association of Central Texas Umbrella Services (Austin, TX) |