Machiel Kiel (born February 28, 1938) is a Dutch professor of art history. Narrow specialist in Ottoman architecture in the Balkans.

For more than half a century after the Second World War, he worked on the grounds, restorations and with the Ottoman archives in Sofia, Istanbul and Ankara.^[1]

He personally researched the Ottoman architecture of the Old Bazaar, Skopje before the 1963 Skopje earthquake.