The theory of post-traumatic growth claims that, in the struggle to overcome difficult experiences, individuals may identify positive ways in which the experience has changed them. There is extensive evidence of survivors of extreme adversities reporting the phenomenon across different cultures. Although reconciliation involves facilitating positive changes in the identities of perpetrators, post-traumatic growth has not yet been studied in relation to perpetrators of political violence. In this theoretical review article, we draw upon existing research to evaluate the applicability of the concept of post-traumatic growth in the context of perpetrators of the 1994 Genocide against the Tutsi in Rwanda and discuss the unaddressed theoretical and ethical issues that need to be considered in this context. We conclude that it is feasible for posttraumatic growth to manifest in this population. However, we suggest that the current definition of this concept needs considerable revision including a focus on measuring behavioural change. We further conclude that researchers need to navigate this topic very carefully, given the ethical issues surrounding misrepresentation and inappropriate dissemination.