Ruseiniai (formerly Russian: Руссейни, Polish: Rusiańce) is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village had a population of 20 people. It is located 9 kilometres (5.6 mi) from Josvainiai, among the Šušvė (the Angiriai Reservoir), the Smilgaitis and the Amalis rivers, nearby the Josvainiai Forest.

There is an ancient burial place where relics of horses and men, dated by 11th-16th centuries, have been found.

Ruseiniai has been known since 1595.

Historical population

Year Pop. ±% p.a. 1866 271 —     1902 308 +0.36% 1923 287 −0.34% 1959 192 −1.11% 1970 161 −1.59%	Year Pop. ±% p.a. 1979 81 −7.35% 1986 43 −8.65% 1989 31 −10.33% 2001 27 −1.14% 2011 20 −2.96%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011

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  A house with a crescent moon
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  A cross by the "Young Lithuania" organization
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  Agriculture buildings in Ruseiniai
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  Ruseiniai burial place