The importance of segmenting the tourism services market is argued by the existence of a large number of consumers that form this market. The variety of customers' buying and consumption behaviour influences the decisions of tourist agencies in the process of identifying and satisfying tourists' needs. The variety of market segmentation criteria can be classified into four distinct groups: geographical, demographic, economic and psychosocial. The criteria for segmenting the tourism services market are diverse and differ from one market to another. The tourist agency may choose those it considers most representative. As a result of the segmentation of the tourism services market, for each identified target segment, it is possible to develop or adapt products and services according to the characteristics of the customers in that segment.