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