This thesis deals with the goods classification of the Nordic alcohol monopolies, viz. Alko in Finland, Rúsdrekkasøla Landsins in the Faroe Islands, Systembolaget in Sweden, Vínbúðin in Iceland, and Vinmonopolet in Norway. The focus of the study is the web pages of the companies (as they appeared April 10th 2011) and the printed price catalogue of Alko, from which information on class division has been excerpted. The emphasis lies on the division into product groups and the information about origin. Within these facets, which partly overlap in some of the classification systems, the principles of division and the hierarchical relations between classes are studied. The systems have different degrees of specificity and many external dissimilarities, but they are all based on the same principles of division, which could be called production method, raw material, origin, and alcohol content. In general the systems are hierarchically well constructed, but some deviations occur, which might affect the information retrieval negatively. The study concludes with suggestions on how the companies could improve their classification systems. These suggestions are summarised company by company at the end of the essay.