| Acronym | Definition |
|---|
| ESTI➣Emergency Services Training Institute |
| ESTI➣Enhanced Self Timed Interface |
| ESTI➣École Supérieure de Technologie et d'Informatique (French: School of Technology and Computer; Tunisia) |
| ESTI➣Esthetician |
| ESTI➣European Solar Test Installation |
| ESTI➣European Society of Thoracic Imaging |
| ESTI➣École Supérieure de la Transaction Immobilière (French: Superior School of Real Estate Transaction) |
| ESTI➣Envision Sustainability Tools Inc. (Vancouver, British Columbia, Canada) |
| ESTI➣Easy Software Technologies, Inc (Philippines) |