Only major T and G surface stations shown Broad Street LineMarket–Frankford LineMedia–Sharon Hill LineRoute 15 trolley Norristown High Speed LineSubway–Surface trolleysSEPTA Metro is an urban rail transit network in and around Philadelphia, Pennsylvania, United States, operated by the Southeastern Pennsylvania Transportation Authority (SEPTA).

Although some of Philadelphia's transit lines date to the 19th century and the SEPTA agency began operations in 1965, the transit network itself had no formal name until 2024, when it was named "SEPTA Metro" as part of an effort to make the system easier to navigate.

The effort is also replacing each line's name with a single letter, plus a number to denote various service patterns.

In September 2021, SEPTA officials proposed to rebrand its rail transit services to make the system easier to navigate.

[3][4] Under this proposal, new maps, station signage, and line designations would be created.