Kermušija is a village in Druskininkai Municipality, in Alytus County, in south Lithuania. According to the 2021 census, the village has a population of 17 people.

Kermušija village is located about 7 kilometres (4.3 mi) from Druskininkai and 1 kilometre (0.62 mi) from Latežeris (the nearest settlement).

• "Gyventojai gyvenamosiose vietovėse / Population by locality" (PDF). Lietuvos respublikos 2011 metų gyventojų ir būstų surašymo rezultatai / Results of the 2011 Population and Housing Census of the Republic of Lithuania (in Lithuanian and English). Lietuvos statistikos departamentas / Statistics Lithuania. 2013. pp. 425–674. ISBN 978-9955-797-19-7.

53°59′20″N 24°05′49″E / 53.98889°N 24.09694°E / 53.98889; 24.09694