ZN or Zn may refer to:
Algebra edit
- Zn, a cyclic group
- the ring of integers modulo n in modular arithmetic
Geometry edit
Science edit
- Zinc, symbol Zn, a chemical element
- Zettanewton (ZN), an SI unit of force
- Ziehl–Neelsen stain, a bacteriological stain
Other uses edit
- Zontanoi Nekroi, a Greek hip hop group
- Air Bourbon, a French airline (2002–2004; IATA: ZN)