This study investigates the regional demand for shrimp in Norway by employing the linear approximated Almost Ideal Demand System (LA/AIDS) framework. Shrimp consumption has grown significantly globally, with Norway being no exception. The LA/AIDS model allows us to examine the demand patterns, price elasticity, and expenditure elasticity of shrimp across different regions in Norway. We utilize comprehensive data on regional shrimp consumption, prices, and household expenditures to estimate and analyze the demand parameters. Our findings reveal consistent patterns across regions, with fresh Coldwater shrimp emerging as a dominant competitor, often substituting for other shrimp species. Furthermore, regional variations in substitution relationships highlight the nuanced nature of the market, with differences in the intensity of competition and the extent of substitution effects.