Dierfeld is an Ortsgemeinde, or municipality, located within the Bernkastel-Wittlich district of Rhineland-Palatinate, Germany. It functions as a member of a Verbandsgemeinde, which is a specific type of collective municipality in the region.
The village is notable for being one of the smallest municipalities in Germany. It holds the distinction of being the least populous municipality in the country, with a total population of only nine residents.