A total of 121 operators of tilapia cages, pens and ponds in Lake Buluan, Sebu and Lanao del sur and ninety-six buyers/sellers in Buluan, Tacurong, Suralla, Marbel and Marawi City are interviewed to determine the marketing systems and problems of the tilapia industry in Mindanao. Marketing channels for tilapia vary from no intermediary to at most three intermediaries before the produce reaches the consumers. Marketing problems encountered by producers included high costs of transportation, low price and lack of storage facilities. Majority however, have no marketing problem. Among buyers/sellers, the most common problems are the lack of capital, storage facilities, high transport costs or lack of transportation facilities.