- Neuritin 1 (NRN1)
- Nuclear Receptor Binding Protein 1 (NRBP1)
- Nuclear Receptor Binding Factor 2 (NRBF2)
- Nephronectin (NPNT)
- N-Acetylneuraminate Pyruvate Lyase (NPL)
- Nuclear Pore Complex Interacting Protein (NPIP)
- Neuronal PAS Domain Protein 4 (NPAS4)
- Neuronal PAS Domain Protein 3 (NPAS3)
- Neuronal PAS Domain Protein 2 (NPAS2)
- Neuronal PAS Domain Protein 1 (NPAS1)
- Neuronatin (NNAT)
- Nicotinamide-N-Methyltransferase (NNMT)
- Nicotinamide Nucleotide Transhydrogenase (NNT)
- Nicotinamide Nucleotide Adenylyltransferase 2 (NMNAT2)
- Nicotinamide Nucleotide Adenylyltransferase 3 (NMNAT3)
