Gmina Miączyn is a rural gmina (administrative district) in Zamość County, Lublin Voivodeship, in eastern Poland. Its seat is the village of Miączyn, which lies approximately 18 km east of Zamość and 87 km south-east of the regional capital Lublin. The gmina covers an area of 155.91 km2, and as of 2006 its total population is 6,281 (6,082 in 2013). The gmina contains part of the protected area called Skierbieszów Landscape Park.

Villages

Gmina Miączyn contains the villages and settlements of Czartoria, Frankamionka, Gdeszyn, Gdeszyn-Kolonia, Horyszów, Horyszów-Kolonia, Koniuchy, Koniuchy-Kolonia, Kotlice, Kotlice-Kolonia, Miączyn, Miączyn-Kolonia, Miączyn-Stacja, Ministrówka, Niewirków, Niewirków-Kolonia, Poddąbrowa, Podkotlice, Świdniki, Zawalów, Zawalów-Kolonia and Żuków.

Neighbouring gminas

Gmina Miączyn is bordered by the gminas of Grabowiec, Komarów-Osada, Sitno, Trzeszczany, Tyszowce and Werbkowice.