| Acronym | Definition |
|---|
| CPTM | Companhia Paulista de Trens Metropolitanos (Portuguese: Paulista Company of Metropolitan Trains; São Paulo, Brazil) |
| CPTM | Consejo de Promoción Turística de México (Spanish: Tourism Board of Mexico) |
| CPTM | Corporación Parque Tecnológico de Mérida (Merida's Technology Park Corporation) |
| CPTM | Commonwealth Partnership for Technology Management (UK) |
| CPTM | Certified Professional Training Manager (various organizations) |
| CPTM | Capacity Planning Tools & Metrics (Sprint) |
| CPTM | Central Planning Team Meeting |
| CPTM | Cost Per Thousand Targeted Impressions (Variation: Cost Per Targeted Thousand Impressions) |