This qualitative phenomenological study explored the traits and leadership behaviors primary and secondary teachers perceive as trustworthy in a principal and how trust in the principal contributes to teachers' job satisfaction. Fifteen primary and secondary teachers participated in semi-structured interviews, and transcripts were coded in a multi-cycle approach to identify themes with a recurrence rate of 30% or greater. The study found teachers perceived trustworthy principals as being benevolent, honest, and competent. Data analysis generated a list of eight principal leadership behaviors that build and maintain teacher trust. Findings from the study also suggest trust in the principal has a significant impact on elementary and middle school teachers' overall job satisfaction and a moderate impact on high school teachers' overall job satisfaction. To address the complex, real-world problem of the growing teacher turnover rate, the study proposed the creation of a professional development seminar and online community to share trust research in order to assist principals with building teacher trust and improving teachers' job satisfaction as an initial evidence-based solution to a broader action plan. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]