The purpose of this study is to identify the set of key skills and dispositions needed by secondary school principals to function as effective disciplinarians. A secondary exploration is the perceptions of males and females concerning this topic. Based on the results of this study, the skills and dispositions identified to be most needed are to be fair while establishing a positive school climate. Also identified as most needed are the dispositions to be honest, trustworthy, straightforward and ethical. Being an effective communicator is also identified as an essential skill. A frustration expressed by practitioners was the unique issues surrounding the discipline requirements of students with special needs. An additional frustration was expressed concerning the lack of knowledge and ability teachers possess in maintaining classroom control and managing discipline issues.