This study examines the relationships between faculty trust and the organizational citizenship behaviors of elementary school teachers. The central research question of the investigation was "What aspects of organizational trust are the best predictors of organizational citizenship?" In a sample of 112 elementary schools in south-central Texas, data were collected from teachers and aggregated at the school level. Trust in colleagues and trust in clients emerged as statistically significant and independent predictors of organizational citizenship. However, neither student socioeconomic status nor school size proved to be predictors of organizational citizenship.