Extant research indicates that principals are expected to serve as instructional leaders. Instructional leadership practices of principals in Israeli and US Jewish schools have, until recently, been unexplored. Therefore, this mixed-methodological study explores instructional leadership perceptions and behaviors among Israeli and US principals. Data, via questionnaires and interviews, were collected from 90 principals from each country. Findings suggest that US principals demonstrated significantly higher levels of instructional leadership. In both groups, women principals demonstrated higher levels of instructional leadership. Our interviews provided unique insights leading to our suggestions for ways of promoting greater attention to instructional leadership by principals of both countries.