Božidar Kneževic (3 March 1862, Ub - 18 February 1905, Belgrade) was a Serbian philosopher, writer and literary critic.
Although he was educated for the priesthood, he turned from Orthodox religion to a faith in science and in social regeneration under the guidance of the intellectual elite.
For him the unpardonable sin was dogmatism, since he believed that neither religious, nor historical, nor scientific knowledge is wholly accurate.