| Abbreviation | Definition |
|---|---|
| OHBS | Oregon Handmade Bicycle Show |
| OMCA | Ontario Masters Cycling Association |
| OUCC | Oxford University Cycling Club |
| PABA | Polk Area Bicycling Association |
| PABS | Point Area Bicycle Service |
| PAC | Pacific Atlantic Cycling |
| PBAA | Perimeter Bicycling Association of America |
| PBBA | Permian Basin Bicycle Association |
| PBIN | Pedestrian and Bicycle Infrastructure Network |
| PBR | Professional Bike Rider |
| PCMP | Pedestrian and Cycling Master Plan |
| PCS | Pro Cycling Stats |
| PCT | Pro Cycling Tour |
| PDCC | Peel District Cycling Club |
| PDCC | Peel Districts Cycling Club |
| PICL | Pennsylvania Interscholastic Cycling League |
| PORC | Penshurst Off Road Cycling |
| PPCC | Porn Pedallers Cycling Club |
| PTBA | Port Townsend Bicycle Association |
| PTBA | Professional Trail Builders Association |