The aim of this study was to verify the possibility of predicting various forms of civil activism based on personality traits, locus of control, and some sociodemographic variables. In this study the participants were 278 activists from 25 NGOs. Data was collected using the Big Five Inventory, Rotter's Internal-External Locus of Control Scale, Index of Civil Activism, and Activism Orientation Scale. The results indicated that Extraversion was a positive predictor of civil activism and conventional activism. Openness to experience was a positive predictor of conventional activism, while consciousness was a negative predictor of high risk activism. Locus of control, neuroticism and agreeableness were not significant predictors of any of the various activism forms. Personality traits, locus of control, and sociodemographic variables were able to explain a relatively small percentage of variance (< 26%) in different forms of activism.