We have the pleasure to inform you that during the period 12-16th June, 2023, a Colloquium on Finsler Geometry and its Applications will be held in Debrecen, Hungary, organized by the Department of Geometry, University of Debrecen, Hungary, in cooperation with the Debrecen Branch of the Hungarian Academy of Sciences. The scientific program (13-15th June) is devoted to lectures given by the participants and invited lectures on various fields of Finsler geometry and applications to mathematical physics, and other fields. At the conference we will also celebrate the 100th birthday of the late Professor Lajos Tamássy.