Vainikoniai (formerly Russian: Войникони) is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village had a population of 3 people. It is located 1 kilometre (0.62 mi) from Jakšiai, next to the Sakuona river. There is an abandoned kolkhoz warehouse and a technic yard complex.

Vainikoniai was established during the Interwar in the former land of the Sakūnėliai estate.

Historical population

Year Pop. ±% p.a. 1923 138 —     1959 134 −0.08% 1970 111 −1.70% 1979 44 −9.77%	Year Pop. ±% p.a. 1989 11 −12.94% 2001 7 −3.70% 2011 3 −8.12%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011