Red deer, roe deer, and wild boar belong to a group of large game and are the most common species of game in the hunting area in Eastern Croatia. The research was conducted by the company hunting staff in the Osijek-Baranja County, area of Kućanci in the interval from 2008 to 2018. Knowing the number of wildlife in the hunting area is the base for establishing growth and planning shootings. It is important to keep the balance in the hunting ground to avoid transmission and spreading of diseases and reduce traffic accidents as well as vehicle and wildlife damages. Given the fact that populations of large game have great importance in Croatia, the main objective of the study was to determine population trends of red deer, roe deer, and wild boar in the hunting ground in Eastern Croatia in 2008 – 2018.