Mociūnai (formerly Polish: Maciuny, Russian: Мацюны) is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village had a population of 28 people. It is located 2.5 km from Kalnaberžė, by the deep valleys of Kruostas and Skaudinis rivers. There is an Old Believers cemetery in the village. Mociūnai Forest Botanical Sanctuary is located 2 km away from the village, in Kalnaberžė Forest.

Historical population

Year Pop. ±% p.a. 1902 110 —     1923 151 +1.52% 1959 106 −0.98% 1970 122 +1.29%	Year Pop. ±% p.a. 1979 38 −12.16% 1989 26 −3.72% 2001 25 −0.33% 2011 28 +1.14%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011

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  Old Believers cemetery
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  An abandoned house
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  Mociūnai in winter