Arlington is a station on Pittsburgh Regional Transit's light rail network, located in Castle Shannon, Pennsylvania. The street level stop is designed to serve a nearby commercial strip, providing access for local residents to businesses along Mt. Lebanon Boulevard. Nearby Cooke Drive is also lined with apartments, allowing local light rail access for residents of these dwellings.

In May 2024, the Federal Transit Administration awarded The T $8 million to construct accessible platforms at ten stops, including Arlington.