Mumaičiai (Russian: Мумайце, Polish: Mamajcie) is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village had a population of 7 people. It is located 4.5 kilometres (2.8 mi) from Ažytėnai, between the Vinkšupis (a tributary of the Šušvė) and the Srautas (a tributary of the Dotnuvėlė) rivers.

Historical population

Year Pop. ±% p.a. 1902 72 —     1923 99 +1.53% 1959 63 −1.25% 1970 38 −4.49%	Year Pop. ±% p.a. 1979 14 −10.50% 1989 10 −3.31% 2001 10 +0.00% 2011 7 −3.50%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011