23rd October 2017 commemorated the 30th anniversary of the Council of Europe Declaration of Santiago de Compostela. After the declaration was made, routes of the Camino de Santiago were drawn throughout Europe and Lithuania as well. This article briefly presents the sources and development of the Way of Saint James and its extensions into Lithuania. Commemorating the anniversaries of the establishment of the Samogitian diocese (1417) and Telšiai diocese (1926), the attention is focused on the routes of the Camino de Santiago in the territory of the Telšiai diocese.