STPP may refer to:
- Sodium tripolyphosphate, a sodium salt of triphosphoric acid
- Singareni Thermal Power Project, located at Jaipur, Mancherial District, in Telangana, India
- Short-term psychodynamic psychotherapy, an intensive form of psychotherapy
- Subject to planning permission
- Saint Paul and Pacific Northwest Railroad
This disambiguation page lists articles associated with the title STPP.
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