The Walker-Ewing Log House is an historic, eighteenth century loghouse located in Collier Township, Allegheny County, Pennsylvania.

The home of Gabriel Walker, the structure was built on property that was originally part of a 437-acre tract of land that had been rendered as payment for military service performed during the American Revolution.

Archives at the Pioneers West Historical Society hold a copy of an 1817 deed to the property, which had been owned by descendants of the Walker and Ewing families in an unbroken line of transfer for more than two hundred years.

[6] Gabriel Walker, who had relocated with his brother, Isaac Walker, from Lancaster County to Allegheny County sometime prior to the Revolutionary War, fought beside his brother during the war and was subsequently arrested with him in 1794 for involvement in the Whiskey Rebellion.

[7][8] The house, which is located roughly two miles northwest of present-day Rennerdale, Pennsylvania, was added to the National Register of Historic Places on January 30, 1976,[1] and the List of Pittsburgh History and Landmarks Foundation Historic Landmarks in 1970.