Green marketing in the sports industry has become increasingly vital as environmental concerns continue to shape consumer behavior and business practices. This paper explores the implementation of green marketing strategies within the sports sector, focusing on the principles, applications, techniques, and case studies that illustrate the industry's growing commitment to sustainability. Green marketing not only promotes eco-friendly products and services but also encourages businesses to adopt sustainable practices throughout their operations. The paper examines how major sporting events, such as the Rio 2016 Olympics and FIFA World Cup, integrate environmentally conscious practices, and how leading sports brands like Adidas and Nike utilize recycled materials and green certifications in their product lines. Furthermore, it investigates the role of digital marketing, social media campaigns, and eco-labeling in promoting green initiatives. Through a review of current literature and case studies, this paper demonstrates that green marketing is essential for building brand equity and reputation in the sports industry. As consumer awareness of environmental issues grows, sports organizations are increasingly adopting sustainability goals and incorporating green marketing as a core element of their strategies. The paper concludes with insights into the future of green marketing in sports and its potential to drive greater environmental responsibility across the industry.