Thomas D. McLaughlin (born in Oil City, Pennsylvania on August 4, 1882) was an American architect in Lima, Ohio. His work included the design for Notre Dame College's Administration Building that was built in 1927 in a Tudor Revival architectural style, along with other styles.
McLaughlin studied at Lima College in Lima, Ohio, spent three years at Hamilton College in New York and another three years studying architecture at Columbia University. He worked as superintendent of construction for the Buckeye Pipe Line Company before becoming part of Dawson & McLaughlin with Charles Wilmott Dawson who came to Lima in 1900.
Dawson was born in Plainfield, New York on December 10, 1867, studied at Haverford College graduated from Massachusetts Institute of Technology in 1888, and interned with Henry Van Brunt. His works included the manufacturing plant of The Deisel-Wemmer Company, the wholesale warehouse of The Moore Brothers Company, the Central Building and the Renze Block, as well as many residences such as those for J. D. S. Neely, F. T. Cuthbert, Henry G. Wemmer, W. J. Wemmer, W. K. Boone and G. E. Bluem. McLaughlin joined him in 1906.
Notre Dame's college building was built by contractor John T. Gill and originally housed the entire college. It was added to the National Register of Historic Places as Notre Dame College of Ohio. McLaughlin submitted a design proposal for a tower at the Ohio State Capitol.
After Dawson died McLaughlin partnered with Peter M. Hulsken to form McLaughlin and Hulsken. Their work was featured in Ohio Architect and Builder volume 18. Hulsken was a native of the Netherlands where he practiced for several years, and studied in Berlin and Paris, before coming to Lima and entering into the partnership in 1909.