Definitions of leisure often rely on elements of agency such as free time or freedom of choice yet have been called into question by feminist theorists due to women’s unequal access to leisure. Leisure as a concept is further troubled within prison as this setting relies on restricting agency and women therein are viewed as lacking agency. I thus ask: What do we know about leisure in prison, especially women’s prisons? What is it, what does it do, and who is it for? I review empirical, theoretical, and gray literature on leisure in prison to clarify the current state of knowledge. Building on sociologies of prison and of leisure, I define leisure in prison by distinguishing nature, terminology, and types. I present leisure practices in (women’s) prisons by considering individual involvement, organizational conceptions, and benefits on both levels. I then present individual, organizational, and social issues concerning leisure in (women’s) prisons. I conclude by discussing gaps in knowledge and identifying future areas of inquiry, namely into apprehending leisure as a dynamic whole within women’s prisons. (Publication First by Frontiers Media)