Robert A. Welcke (fl. 1876 – c. 1940) was a photolithographer active in New York in the latter part of the 19th century and early 20th century. Welcke may have been a Prussian immigrant, but we have not been able to verify this. Welcke's firm, Robert A. Welcke Offset Company, was based at 176 William Street. Welcke's corpus of work ranges from maps of New York and Connecticut to illustrations on Flemish Renaissance interiors to government maps and brochures to decorative sheet music covers. Following Welcke's death the firm was taken over by his daughter, Olga Welcke, who along side William Jugens managed the firm until the outbreak of World War II.