3PS may refer to:
- Three Principles Psychology (3Ps)
- Pause, Prompt, Praise (3Ps) in teaching reading
- pain, pee, poo (3Ps), see List of medical mnemonics
- proven AND probable AND possible (3Ps) status for proven reserves of fossil fuels
- Triplet state (3PS*) in antimicrobial photodynamic therapy
- Airtronics Caliber 3PS from Sanwa Electronic
- 3P+S from Processor Technology, an Input/Output Module for the S100 expansion bus
See also
edit- All pages with titles beginning with 3PS
- All pages with titles containing 3PS
- P3S
- PS3 (disambiguation)
- PPPS (disambiguation)
- PS (disambiguation)
- 3P (disambiguation) for the singular of 3Ps