Akmenynai is a village in Kalvarija Municipality, in Marijampolė County, Lithuania. Akmenynai lies at 182 m above sea level. It has 172 inhabitants (2021). The nearest city is Marijampolė, 23 km to the northeast. Near the border: Poland, 6.3 km. Among the landmarks around are Puńsk synagogue (18.9 km), Church of the Assumption in Puńsk (19.0 km) and Our Lady of Częstochowa church in Becejły (16.6 km).