Abstract: Mosquitoes are vectors of parasites causing diseases and are distributed in various ecological niches. This research work was set to determine the distribution and relative abundance of mosquito larvae in Guyuk Local Government Area of Adamawa State within the months of August 2014 and January 2015. Banjiram, Guyuk, Bobini and Chikila districts were surveyed using standard entomological procedures. Dipping Method was used in collecting larval samples from the field and reared to adult in insectaria. Results revealed two hundred and one (201) potential mosquito breeding sites, which were grouped with respective densities: cans/containers/tyres (16.75); ditches/pools/swamps (10.44); domestic runoffs/gutters (14.04); tree holes/leaf axils (5.16); and vehicle tyre tracks/human and animal foot prints (1.62). A total of two thousand, six hundred and eighty nine (2689) mosquito larvae were collected and subsequently reared to adults. The types of breeding sites, species of mosquito, as well as their seasonal distribution varied when analyzed.