NER may refer to:
- New European Recordings, a record label
- ISO 3166-1 three letter code for Niger
- Named entity recognition, a text processing task that identifies certain words as belonging to one class or another
- North Eastern Railway (India)
- North Eastern Railway (UK)
- Northern and Eastern Railway (N&ER), an early British rail company
- North-East India, known as North Eastern Region
- Nucleotide excision repair, a DNA repair mechanism
- Network Effectiveness Ratio, KPI in telecommunications
- New England Revolution, American soccer team