Simoniškiai is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village was uninhabited. It is located 4 kilometres (2.5 mi) from Pajieslys, between the Smilga and the Smilgaitis rivers, on the edge of the Josvainiai Forest.

Historical population

Year Pop. ±% p.a. 1959 24 —     1970 3 −17.22% 1979 0 −100.00%	Year Pop. ±% p.a. 1989 0 0.00% 2001 0 0.00% 2011 0 0.00%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011