Abstract: The length-weight relationship and condition factor of Hyperopisus bebe occidentalis from Kontagora reservoir, Nigeria was investigated. About 836 fish samples ranging from 8.10-12.20 cm total length and weighing between 8.40 and 30.40 g, collected from January to December, 2007 were analyzed. The values of a, b and r were 0.0036, 3.320 and 0.893, respectively while the condition factor (K) values ranged from 1.20-2.0 with a mean value of 1.62. Hyperopisus bebe occidentalis exhibited positive allometric growth and the condition of the reservoir is favourable for the survival of the fish species.