In the following study the results of the empirical research of the connection between the feeling of happiness and subjective loneliness, individualism/collectivism and satisfaction with interpersonal relationships of senior school students are presented. The sample (n=120) consists of 16-17 year-old Suvorov Military School and gymnasium students. Overall, negative correlation between feeling of happiness and the level of subjective loneliness was established on the sample. Positive correlations were identifi ed between feeling of happiness and satisfaction of relationships with family, friends and classmates. Correlation with all three relationship subjects were identifi ed referring to the female students. As for the male students, the feeling of happiness is connected only to the satisfaction of relationships with friends and classmates; regarding the Suvorov Military School students, only to the satisfaction of relationship with their friends. Hypothesis of the connection between the feeling of happiness and individualism/collectivism has not been confi rmed.