This chapter examines vegan and vegetarian cheeses' development, production processes and market dynamics. With the growing demand from vegan and vegetarian communities, the variety and quality of plant-based cheeses has increased significantly. The study examines the consumption of plant-based cheeses from the perspectives of vegetarianism and veganism, exploring the issue comprehensively from ethical, environmental, health, religious and cultural aspects. Then, how plant-based cheeses are produced from various raw materials is presented. Compared to conventional cheeses, the similarities and differences of plant-based cheeses in terms of organoleptic properties and health values were examined. Considering the changes in consumer preferences and the rapidly growing market share of plant-based cheeses, it is revealed how the food industry responds to these changing demands. As a result, it has become clear that vegan and vegetarian cheeses can play an important role not only as an alternative food product but also in the transition to a more ethical and sustainable food system.