Walter David Pugh (April 4, 1863 – November 23, 1946)) was a prominent architect in Salem, Oregon, United States.
The son of a carpenter, Pugh began designing buildings in Salem when there were only a few thousand residents, and in nearby Eugene when it had a little over a thousand residents. Pugh designed Salem's Oregon State Hospital buildings being constructed in 1907-1908, including an addition to the "J Building", which has since been demolished.
A number of his buildings are listed on the National Register of Historic Places (NRHP).
Independence National Bank (1891), 302 S Main St., IndependenceBush and Brey Block and Annex, 179-197 Commercial St. NE, Salem, built for Asahel Bush II and Mortiz Brey, a cabinet makerBush–Breyman Block (1889), 141-147 Commercial St. NE, SalemShelton-McMurphey-Johnson House, 303 Willamette St., EugeneBuildings on the Oregon State Hospital campusChemeketa Lodge No. 1 Odd Fellows Buildings (Grand Theater) (1900), 185-195 High St. NE, Salem, (1921 annex designed by Morris H. Whitehouse)United Presbyterian Church and Rectory (Whitespires) (1891), 510 SW 5th Ave., Albany, with H. C. ChamberlainThomas Kay Woolen Mill, 260 12th St. SE, SalemThe former Salem City Hall (1893), demolished 1972 after a bond measure to preserve it failed, corner of High and Chemeketa streetsThe dome of the second Oregon State Capitol, which burned in 1935LeBreton Cottage (1908) at Fairview Training Center 
