Bajėnai I (Bajėnai 1st, formerly Russian: Бояны, Polish: Bojany) is a village in Kėdainiai district municipality, in Kaunas County, in central Lithuania. According to the 2011 census, the village had a population of 29 people. It is located 4.5 kilometres (2.8 mi) from Skaistgiriai, by the Kriaušiupys rivulet, nearby the road Aristava-Kėdainiai-Cinkiškiai.

A fragment of an ancient stone axe has been found in Bajėnai I. The Bajėnai Manor is known since the end of the 16th century. In the 19th century, it belonged to the Tyszkiewicz family and later to the Jesuits. They have created a dairy and vegetable farm in Bajėnai.

Historical population

Year Pop. ±% p.a. 1902 110 —     1923 243 +3.85% 1959 175 −0.91% 1970 151 −1.33% 1979 81 −6.69%	Year Pop. ±% p.a. 1984 65 −4.31% 1989 39 −9.71% 2001 46 +1.39% 2011 29 −4.51%
Source: 1902, 1923, 1959 & 1970, 1979, 1989, 2001, 2011

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  A street of the village
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  A commemorative roofed pole to the exiled villagers from Bajėnai I