Research shows that humour plays a significant role in the formation of a collective identity and ‘creates a sense of internal cohesion’ based on shared experiences [Fominaya, C. F. (2007). The role of humour in the process of collective identity formation in autonomous social movement groups in contemporary Madrid. International Review of Social History, 52(S15), 243–258. https://doi.org/10.1017/S0020859007003227]. In this paper, we focus on humour in jihadi English magazines. This study is based on 82 English magazines published by the Taliban, ISIS, Al-Qaeda and Tahrik-e Taliban Pakistan (TTP). This research takes a mixed method of analysing data both qualitatively and quantitatively. The findings point to a statistically significant difference amongst these groups in the type of humour they utilise. In general, Al-Qaeda, the Taliban, and TTP show similar patterns in the types of humour they employ, a pattern that often stands in stark contrast with ISIS. ISIS is more likely than Al-Qaeda, the Taliban or TTP to use dehumanising and mocking humour while less likely than these groups to use situational humour, which is a less negative form of humour.