Fuzzy decision analysis is proposed as a method of site selection for nuclear power plants. The opinion of experts is employed to rank the alternatives across a set of criteria. The analyst uses fuzzy numbers to describe the experts' preferences. This approach can handle the situation in the case of unavailability of precise data, which is most commonly the case in site selection. Fuzzy numbers can take into account the imprecision of the factors affecting decision making such as site meterology, population growth, cooling water availability, etc. Fuzzy ranking is achieved using fuzzy arithmetic and the alternatives are ranked from best to worst. An example is also presented to illustrate the method.