Robeson Extension is an unincorporated community and census-designated place (CDP) in Blair County, Pennsylvania, United States.

[2] The CDP is in eastern Blair County, on the southern border of Catharine Township.

It sits within a bend of the Frankstown Branch Juniata River, which borders to the community to the east, south, and west.

High Street leads from Robeson Extension south across the Frankstown Branch into Williamsburg.

This Blair County, Pennsylvania state location article is a stub.