This study examined the economic analysis of fresh fish marketing in selected Local Government Areas of Niger State Nigeria. The specific objectives of the study were to describe the socio-economic characteristics of fresh fish marketers, determine the consumer¿s preferences for fresh fish, examine the fish marketing structure and performance, analyze the efficiency of fresh fish marketing and factors influencing it, and identify the constraints faced by fresh fish marketers in the study area. The socioeconomic characteristic, consumers¿ preferences for fresh fish, and the constraints associated with fresh fish markets were analyzed using descriptive statistics, while the Gini coefficient was used to determine the market structure. The market performance of fish marketers in the study area was analyzed using the marketing margin and cost and returns analysis. Finally, the relations between the factors influencing efficiency were analyzed using multiple regression models.