Beržai is a village in Kėdainiai district municipality, in Kaunas County, central Lithuania. It is located by the Kruostas river and Vaidatoniai pond, 4 km (2.5 mi) from Dotnuva. According to the 2011 census, the village has a population of 214 people. Beržai is the site of an ancient burial place.

Historical population

Year Pop. ±% p.a. 1902 316 —     1923 140 −3.80% 1959 291 +2.05%	Year Pop. ±% p.a. 1970 368 +2.16% 1979 395 +0.79% 1984 328 −3.65%	Year Pop. ±% p.a. 1989 316 −0.74% 2001 256 −1.74% 2011 214 −1.78%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011