The paper summarizes the legal experience of Canada, Denmark (relating to Greenland) and Norway in drawing straight baselines in the Arctic which join the furthest seaward points selected by a relevant coastal state in the context of applicable rules of the Contemporary International Law. The authors of the paper have compiled the basic legal arguments, which were relied upon by the three Arctic Coastal States mentioned above to show the “legal purity” of their straight baselines along the Arctic coasts. Legal evaluation of such a practice of Norway, Canada and Denmark is suggested in the paper in the context of relevant rules of the Convention on the Territorial Sea and Contiguous Zone, 1958, and UNCLOS 1982, and the 1951 Judgment of the I...