9P or 9-P may refer to:

• 9P (protocol), a network protocol developed for the Plan 9 from Bell Labs distributed operating system
• 9P, NASA code for Progress M1-9
• 9p, an arm of Chromosome 9 (human)
• 9P/Tempel; see Tempel 1
• Monosomy 9p, a chromosomal disorder due to deletion
• Tetrasomy 9p, a genetic disease due to inclusion

• 9P, a variant of Salmson 9
• 9P, a model of AIM-9 Sidewinder
• GCR Class 9P, a class of British 4-6-0 steam locomotive
• Yak-9P, a model of Yakovlev Yak-9

• New York State Route 9P

• P9 (disambiguation)

Topics referred to by the same term

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