Courts play an important role in environmental law. Among other things, they uphold the rule of law and adjudicate on the legal disputes that inevitably arise. This chapter explores the role of courts in environmental law. It outlines why courts are understood to be important in environmental law, what courts are, the different types of courts relevant to UK and EU environmental law, the importance of access to justice, and the actual and potential role of specialist environmental courts. Overall, what is apparent from this chapter is not only that the role of courts is an important one, but that it is also complex.