Risk communication is widely researched in the social sciences, but in linguistics the study of how risk is communicated has not yet formed a coherent field of its own. In this chapter, we approach risk from a discourse perspective, aiming to promote the establishment of risk discourse as a field of study with its own characteristics. We approach the question “What is “risk”?” through a discourse-linguistic analysis that crucially involves the concept of responsibility. We show that there is a body of previous research in linguistics that has dealt with some aspect of risk, but typically without foregrounding risk or using risk as an analytical tool. We show how this state of affairs also applies to responsibility. We argue that an understanding of discourse about risk and risk scenarios needs to be informed by an understanding of the concept of responsibility. The theoretical point of this chapter is therefore to conceive of and establish this type of responsibility-embedded Risk Discourse. Throughout the chapter, we discuss ways in which risk and responsibility can serve as analytical tools in risk discourse studies. This is illustrated by reference not only to previous research, but also to the chapters included in the current volume.