The Tigard branch is a short railway line on the west side of Portland, Oregon, in the United States.

The Portland and Western Railroad operates the line, including the WES Commuter Rail service.

A short spur runs to the Beaverton Transit Center, the northern terminus of the WES Commuter Rail service.

[8] Services began at Portland Union Station, then used either the Newberg or West Side branch to reach McMinnville and then Corvallis.

[13] The Beaverton Transit Center is located north of the existing right-of-way and required the construction of a 0.5-mile (0.80 km) spur.