Study on the fish abundance of Obutu Lake in Omogho, Orumba North Local Government Area, Anambra State, Nigeria was conducted bimonthly over a period of 6 months stretching both wet and dry season. Fish samples were collected using gill nets (mesh size 9 inches), hooks (size 2 inches) and lines, monofilament gill net and three layered gill net. Four stations were selected for the study. A total of 723 fishes belonging to 5 orders, 11 families and 19 species were collected. Tilapia zilli (106) was the most abundant species with percentage composition of 14.66% while Barbus accidetalis and Polypterus senagalus were least in abundance with percentage composition of 3.18 % each. The study reveals that fish abundance was highest at station 1 and station 4 has the least fish abundance. The highest number of fish was caught in October (168) and the lowest number of fish was caught in July (87).The study also shows that fish abundance was higher in dry season than in rainy season (p ? 0.05). F