Theodore C. Link, FAIA, (March 17, 1850 - November 12, 1923) was a German-born American architect.
Link emigrated to the United States, arriving in St. Louis in 1873 to work for the Atlantic and Pacific Railroad company. In 1875, St. Louis Surveyor Julius Pitzman recommended him to the job of superintendent of public parks for St. Louis, and after a four-year interim as a German-language newspaper publisher in Pittsburgh, Pennsylvania, Link returned to St. Louis as one of the architects for the 1904 World's Fair. He also "designed most of the buildings for LSU when the campus was relocated in the 1920s." 
Link died in Baton Rouge while working on the new Louisiana State University campus, and was interred at Bellefontaine Cemetery in St. Louis. In 1995 was awarded a star on the St. Louis Walk of Fame.
Among the 100+ buildings he designed: