Death is a life event that signifies the end of life, the termination of individual being as a separate live system and the irreversible cessation of all life functions. The concept of death sometimes occupies the thoughts of individuals, and with regard to the attitude that people have towards death, the fear of death can differ between individuals or groups. The fear od death is defined as anxiety that can be experienced in everyday life caused by the anticipation of the condition in which a person is dead. Many theories have tried to explain not only the concept of death but also the fear of death. The purpose of this research was to determine whether specific groups of people (specifically theists and atheists as well as men and women) differ according to their fear of death, and to determine if there is connection between the fear of death and the variables of age and life satisfaction. The subjects were 444 women and 196 men 13 to 93 years of age. Their average age was 34. The results of this research show that there is a low negative connection between age and the fear of death, which means that the fear of death decreases with age. What is also concluded is that there is a low negative connection between the fear of death and life satisfaction, therefore with the increase of life satisfaction the fear of death decreases and vice versa. Moreover, the results show that there is a significant difference in the fear of death with regards to gender (men are less scared of dying than women) and religious orientation of subjects (atheists show less fear of death than theists).