Summary/Abstract: The main research goal of the article titled “Polish and Yugoslav Relations in the Light of the Diplomatic Cooperation in the 50s - 80s of the 20th Century” was to establish Polish and Yugoslav relations on the basis of the criterion of the normative acts which were signed from the 50s to 80s of the 20th century. Thus, it was during the time before the disintegration of the Yugoslav Federation when both states belonged to the group of socialist countries. At this place the following questions arise: firstly, what kinds of acts were signed by Poland at that time; secondly, what issues were addressed and thirdly, which decade during the time under the examination was richest in this type of diplomatic cooperation. Answering the first of the posed questions, it is possible to observe the nature of those acts which were mostly bilateral agreements or contracts and consular conventions. As far as the issues of the greatest interest are concerned, the most popular were scientific and cultural cooperation, tourism, transport, agriculture, food industry and generally speaking, the field of social policy. Whereas, in the decade of 50s of 20th century the normative acts were most often concluded.
