| NRTC | National Radio Telecommunication Corporation 
| Others |
| NRTC | National Research and Training Center
| Others |
| NRTC | National Research Training Center
| Others |
| NRTC | National Resource and Training Center
| Others |
| NRTC | National Respiratory Training Centre (UK)
| Others |
| NRTC | National Road Transport Commission
| Others |
| NRTC | National Road Transport Commission (Australia)
| Others |
| NRTC | National Robotics Training Center
| Others |
| NRTC | National Rotorcraft Technology Center
| Others |
| NRTC | National Rural
| Others |
| NRTC | National Rural Telecommunications Cooperative
| Others |
| NRTC | Neighborhood Revitalization Tax Credit
| Others |
| NRTC | Nephrology Research and Training Center
| Others |
| NRTC | Network Resource Technologies Corp
| Others |
| NRTC | Nevada Regional Technical Center
| Others |
| NRTC | New Recruits Training Camp
| Others |
| NRTC | Non Refundable Tax Credits
| Others |
| NRTC | Non Resident Training Course
| Others |
| NRTC | Non Resident Training Courses
| Others |
| NRTC | Non Road Transient Cycle
| Others |
| NRTC | Non-Recurring Trip Charge
| Others |
| NRTC | North Ringwood Tennis Club (North Ringwood, VIC Australia)
| Others |
| NRTC | Northern Rockies Training Center
| Others |