| Acronym | Definition |
|---|
| RCCN | Rural Community Carbon Network |
| RCCN | Rugby-Club Chartreuse-Néron (French rugby club) |
| RCCN | Reformed Church of Christ in Nigeria (est. 1973) |
| RCCN | Research Centre for Cognitive Neuroscience (University of Auckland; Auckland, New Zealand) |
| RCCN | Rural Comprehensive Care Network (Crete, NE) |
| RCCN | Reed City Church of the Nazarene (Reed City, MI) |
| RCCN | Regional Center for Community Nutrition (est. 1970; University of Indonesia; Jakarta, Indonesia) |
| RCCN | Research Center for Cosmic Neutrinos (Tokyo, Japan) |
| RCCN | Rural Community Cohesion Network (UK) |
| RCCN | Referral Christian Coaching Network (Rancho Cucamonga, CA) |
| RCCN | Regional Coordinated Care Network (health care) |