Brian Niccol is an American business executive who has served as CEO of Chipotle Mexican Grill since 2018. Under his leadership, Chipotle has expanded its digital presence, improved operational efficiency, and achieved significant sales growth. Niccol previously led Taco Bell as CEO, where he oversaw innovative marketing campaigns and menu development. His career includes senior roles at Yum! Brands, making him a prominent figure in the fast-food and restaurant industry.