The aim of the study was to investigate whether task- and relationship- oriented leadership behaviors have effects on subjective stress and intrinsic motivation among project members. A quantitative method employed to address the study's research questions, hypotheses, and aim in form of a cross-sectional study. Data collection was conducted through surveys. Existing measurement instruments were utilized in the study. The population consisted of 83 usable survey responses. Two multiple regression analyses were conducted, and the result showed that it is possible to predict subjective stress and intrinsic motivation among project members based on the indeoendent variables of task- and relationship-oriented leadership behaviors. Two multiple regression models were found to have unique significant contributions to subjective stress and intrinsic motivation. However, the coefficient for task- oriented leadership behavior in relation to intrincic motivation was deemed not significant in one of the regression analyses. The studys results go against some previous research and contribute to further research linked to motivation, which is discussed in the discussion section.