Historical demography is a scholarly discipline with the aim of shedding light on the demographic picture of the past and explain, by a detailed study of the data and creation of the statistical models, causes and effects influencing that picture. Within the framework of that historical discipline and the historical research in general, this thesis presents basic characteristics connected to demographic and social movements in Kotor in the eighteenth century. The backbone of the research are parish records of births, deaths and marriages of the Kotor parish of St. Tryphon. Besides them, other archival sources (from the archives of Kotor, Zadar and Venice) were also used to shed additional light on and better place demographic research within its social context. During almost 400 years of Venetian rule over the East Adriatic coast, Kotor, as the capital of Venetian dominions South of Dubrovnik, which were gathered in the province of Venetian Albania, had the development identical to that of other coastal cities of Istria and Dalmatia, and through centuries, besides its political, administrative and governmental role, the city affirmed itself also as an important military and strategic centre. In accordance with the aforementioned statement, the basic hypothesis of the thesis presupposes belonging of Kotor to Venetian and Mediterranean political, social and cultural milieu and, accordingly, identity and/or similarity of demographic and social developmental processes with those of other East Adriatic cities of Venetian dominion. While doing so, many peculiarities of historical development caused by various reasons (such as geostrategic position, relationship towards the hinterland, different intensity of influence and interest of central government) have been taken into the account. In order to contextualised dynamics of the demographic population movements, the achieved results were compared with similar research conducted for other East Adriatic cities (Pula, Poreč, Dubrovnik), smaller places and islands (Komin, Murter), as well as to demographic studies regarding towns and other urban settlements in the area of North Croatia (Gradec, Križevci, Varaždin, Brod, the Brdovec parish). Exactly through the aforementioned comparison, general demographic movements in Kotor – from the total number of born/baptised, married and deceased, their seasonal variations, to numerous other topics discussed in the first place by the method of family reconstitution. Influence of war years (1714-1718) and those of famine on demographic movements is also analysed. Besides to demographic topics, the attention has been devoted also to the segments of social development, which may be analysed by study of parish records. In the first place, it refers to professional structure and occupations, studied principally through prism of social, family and business permeation of the denizens of Kotor. Particular social and professional groups built and confirmed their position within their own social layer by marriages and baptismal sponsorships, as well as also within the wider social theatrical arena. Finally, analysis of thousands of parish records pushed in the foreground one of the basic characteristics of Kotor in the eighteenth century – exceptional mobility of the population. Immigration areals has been observed, particularly with the emphasis on professional agency of the immigrants and their gender structure. Within the last two topics, the soldiers, by their number, diversity and social interaction, came into the foreground, confirming in that manner once more extremely military character of the city.