| Acronym | Definition |
|---|
| ECTB | Eastern Cape Tourism Board (South Africa) |
| ECTB | Elite Championship Tournament Baseball (Bally, PA) |
| ECTB | East Coast Tournament Baseball (Bally, PA) |
| ECTB | Étude Coordination et Travaux en Bâtiment (French construction company) |
| ECTB | Engineering Control Technology Branch (National Institute for Occupational Safety and Health; US CDC) |
| ECTB | Étude, Conduite de Travaux du Bâtiment (French construction company) |
| ECTB | Entreprise de Construction en Technologie du Bâtiment (French construction company) |