The history of Armenian town planning explores the culture of city building in the context of Armenian Architecture. The study of its development, however, is a matter of theory of Armenian architecture, with contributions from scholars of the Mechitarist Congregation as well. This is key for research on documents of Armenian cities, studies about Armenian culture, determination of lost properties in 1915 Armenian Genocide, as well as modern sustainable research, etc. This study attempts to identify this issue in the works of Mechitarist scholars, including Fr. Lucas Injijian (The Geography of Ancient and Modern Armenia, Venice: 1806, 1822 and 1835), Minas Pjshkian (Travel researches to Pontos and Poland, Venice: 1819 and 1830), Nerses Sarkisian (Description of Minor and Greater Armenias, Venice 1864), Ghevond Alishan (Description of Shirak, Sisuan, Ayrarat, Sisakan and other regions, Venice: 1881, 1885, 1890, 1893 and other), Hacopos Taschjian (The Armenian settlements from South of Black sea, Vienna 1821, 1945), Soukias Eprikian (Pictorial dictionary of Armenia, Venice: 1905, 1907), Hamazasp Voskian's volumes dedicated to the Armenian monasteries from different regions, Vienna: 1940-1947, 1946,1953, 1957, 1962 etc.), Michael Hovhannesian (The castles of Armenia and Cilicia, Venice: 1970, 1989) etc. The article concludes with a classification of the above authors’ contributions to the study of Armenian historical town planning, as well as architecture in general.