Teacher attrition is generally positioned within research addressing teacher shortage, the wastage of resources and expertise, as well as that concerning teachers’ lowly status and poor working conditions. As such the research is fragmented and diverse. This paper attempts to draw together contemporary international attrition research in order to consider: how teacher attrition may be defined; patterns of attrition; influences upon attrition; the impact of attrition; and strategies employed for decreasing attrition. It concludes that research concerning teacher attrition requires the development of more comprehensive databases on teaching personnel and increased clarity of how attrition is being framed and investigated.