Vailainiai (formerly Russian: Валайне, Polish: Wajłajnie) is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village had a population of 23 people. It is located 2 kilometres (1.2 mi) from Barkūniškis, by the Šušvė river (and its tributaries the Krimslė and the Vinkšnupis), alongside the Grinkiškis-Krakės road. There is a cemetery.

Historical population

Year Pop. ±% p.a. 1902 214 —     1923 126 −2.49% 1959 90 −0.93% 1970 75 −1.64%	Year Pop. ±% p.a. 1979 70 −0.76% 1989 59 −1.70% 2001 50 −1.37% 2011 23 −7.47%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011

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  Cemetery
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  Village from the south