The Folklore Museum of Kastoria (Greek: Λαογραφικό Μουσείο Καστοριάς) also known as Folklore Museum “Nerantzis-Aivazis” (Λαογραφικό Μουσείο “Νεράντζη–Αϊβάζη”), located in the northern Greek city of Kastoria, is housed in one of the city's oldest mansions, the Nerantzis-Aivazis residence near the lake, at 10 Kapetan Lazou Street. The museum has been operating since 1972, and is run by Harmony (a music and literary society). The two-storey premises were built between the 16th or 17th centuries, and survived in such good condition that the museum was able to open without restoration. All the original furniture is still present.