Abstract: The various ethnobotanical uses of tree species growing on the ATBU Yelwa Campus, Bauchi, Northeastern Nigeria, was investigated with the view of documenting the intrinsic values and therapeutic properties for various ailments and other spiritual paraphernalia and subsequently inventorying all the species present. Samples were collected randomly from each sampling plots of equal sizes and the ethnobotanical information was obtained through the administration of questionnaires to the indigenous people. A total of 2,467 woody species of trees belonging to 47 species, 39 genera in 20 families were recorded with 70% being native and 30% being exotic. The distribution pattern showed members of Caesalpinoideae have highest density of occurrence with (526/21%) species, Mimosoideae (411/16%) and Meliaceae (381/13%), while Sterculiaceae (2/0.08%) and Rubiaceae (3/0.012%) were recorded with least densities of occurrence. These trees were observed to provide the inhabitants with several varieties of usage for survival and prosperity such as medicinal, edible food, fodder, timber, fuel among others. However, the utilization pattern showed that about 42 species (39.25%) are used for medicinal purposes; 19 species used as edible (17.75%); 18 species (16.82%) for other uses; 12 species as fuel wood (11.24%); 12 species (8%) used as fodder while, 7 species (7%) are used as timber. Plants parts usage categories was highlighted with bark and leaves having highest percentage of usage and subsequently followed by other plant parts. However, devising a suitable means of conserving them for posterity has thus become imperative.