Two of his friends were Farkas Bolyai, the father of János Bolyai (an independent discoverer of non-euclidean geometry), and Bartels who was Lobachevsky's teacher.
Dalawang ng kanyang mga kaibigan ay Farkas Bolyai, ang ama ng János Bolyai (ng isang malayang deskubridor ng mga non-euclidean geometry), at Bartels na Lobachevsky ng guro.