Rådhusstræde 15 is a narrow, early 18th-century property situated on Rådhusstræde, opposite the small square Vandkunsten, in the Old Town of Copenhagen, Denmark. It was listed in the Danish registry of protected buildings and places in 1945. (Animal Protection Denmark), Denmark's first and largest non-profit animal welfare organization, was also based in the building in the first half of the 20th century.