NFR may refer to:
- National Film Registry, US
- National Finals Rodeo, US
- Network flight recorder. See intrusion detection systems
- Non-functional requirements or non-functional requirements framework
- New Republican Force, Bolivian political party
- Northeast Frontier Railway, India
- Nude Full Reverse Massage
- "Not for resuscitation", alternative wording to "Do not resuscitate" in medical records
- "Not for resale"
- Non-Filterable Residue. See Total suspended solids
- nfr, an Egyptian hieroglyph
- Nociceptive flexion reflex, a withdrawal reflex involving numerous spinal cord synapses in response to pain