The 2600-series is a series of Chicago "L" car built between 1981 and 1987 by the Budd Company of Philadelphia, Pennsylvania.

The cars were first delivered to the CTA in 1981, in time for the upcoming O'Hare Airport extension of the Kennedy Line (now known as the northwestern end of the Blue Line).

They were the last railcars to be built by the Budd Company, later renamed to Transit America.

Additionally, Car 3458 is also retrofitted with LED signs to synchronized gracefully with its mate 3457(3200 series).

These cars were used for the West-Northwest, Lake/Dan Ryan, Howard/Englewood/Jackson Park, Ravenswood, and Evanston routes.

Starting in late 2022, a handful of cars were repurposed for work service to replace the 2400-series cars assigned to work service.

[13][14] Part of car 2753 survives in the Bulls and Blackhawks Madhouse Team Store.