3P or 3p may refer to:
- 3P, People Planet Profit, or Triple bottom line
- 3P, Aruban Tiara Air's IATA airline designator
- 3P, proved plus probable plus possible Oil reserves
- 3p, an arm of Chromosome 3 (human)
- People's Policy Project, a US think tank
- Threepence (disambiguation), in coinage
- Public-private partnership, the operation of a service in the partnership of government and the private sector
See also
edit- P3 (disambiguation)
- Third party (disambiguation), often abbreviated 3P