TPG can stand for:
- Third Party Grading, a term used to refer to coin grading, authentication, and encapsulation companies.
Organisations:
- Royal TPG Post, a subsidiary of TNT N.V., a Dutch transportation company.
- Tortoise Protection Group, an Environmental non-profit organisation.
- Total Peripherals Group, an Internet service provider in Australia.
- TPG Capital, a private equity firm formerly known as the Texas Pacific Group.
- Transports Publics Genevois, a public transportation system operator in Geneva, Switzerland.