Edward Denny and Co. (fl. c. 1853 - 1935), not to be confused with a wool factory in Massachusetts of the same name, was a map publisher based in San Francisco. Information about the company is scarce and its early history is especially mysterious, with the firm being listed as a publisher on some maps as early as the 1850s. At any rate, the company became more prolific in the closing years of the 19th century, focusing on plat maps of cities and counties in California, and is best known for its pocket maps of various California counties.