PTR

PTR is an abbreviation for:

• Pointer (English for "pointer" ) in computer science
• Portfolio Turnover Ratio
• Physikalisch-Technische Reich Institute, today Physikalisch- Technische Bundesanstalt
• Professional Tennis Registry, an international association of tennis coaches
• PTR resource record
• Paid to read, a business model
• Public Test Realm (English for " Public Test Server")

• Disambiguation
• Abbreviation