The abbreviations CH5, Ch5, and variations thereof may mean:
- CH+
5, the chemical formula of methanium, an organic ion - CH5 Deeside, part of the CH postcode area, Great Britain
- Bacteriocin CH5, an antibacterial produced by Lactobacillus acidophilus
- Chile Route 5, a highway in Chile
- CH5, a type of cirrus cloud
- Channel 5 (disambiguation), a common name of television networks, channels and stations around the world
- 22291 Heitifer (1989 CH5), a main-belt asteroid
This disambiguation page lists articles associated with the same title formed as a letter–number combination.
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