Pennsylvania Route 238 (PA 238) is a state highway located entirely in York County, Pennsylvania. The western terminus of the route is at Pennsylvania Route 74 in Shiloh. The eastern terminus is at Pennsylvania Route 181 in Emigsville. The route also interchanges with Interstate 83 at exit 24 (Emigsville).

PA 238 begins at an intersection with PA 74 in the community of Shiloh in West Manchester Township, heading northeast on two-lane undivided Church Road past homes. The road crosses into Manchester Township at the Roosevelt Avenue intersection, passing through a mix of farmland and housing developments, passing through Foustown. Farther northeast, the route passes through Roundtown prior to turning east onto Farmtrail Road. At this point, PA 238 passes commercial development and becomes Church Road again before interchanging with I-83. After this interchange, the route continues past distribution centers to its eastern terminus at PA 181 in the community of Emigsville.

The entire route is in York County.