The William M. Shaw House is a historic house at 40 Norris Street in Greenville, Maine, which now houses the Greenville Inn. Built in 1895, it is a handsome and elaborate example of Queen Anne architecture in a rural small-town setting. The house was designed by Edwin E. Lewis of Gardiner, with alterations by Wilfred E. Mansur of Bangor. The house was listed on the National Register of Historic Places in 2013 for its architecture, and for its association with William Shaw, a leading lumber businessman active in Greenville in the late 19th and early 20th centuries, whose business interests also included ownership of the steamer Katahdin.