N
- N.A.G.
- N.E.C.
- Nagel
- Nakajima Aircraft Company — Japan
- Napier & Son — UK
- National Aerospace Laboratory of Japan
- National
- Nelson
- Hodge
- Nihonnainenki
- Noel Penny Turbines - UK
- Normalair-Garrett
- Northrop
- Norton
Read more about this topic: List Of Aircraft Engine Manufacturers