The term "CSU" can refer to several institutions, but it most commonly stands for the California State University system. This public university system is one of the largest in the United States, comprising 23 campuses across California. It offers a wide range of undergraduate and graduate programs, serving over 480,000 students. Another meaning of "CSU" is the Colorado State University, located in Fort Collins, Colorado. This public research university is known for its strong emphasis on research, particularly in areas like agriculture, engineering, and environmental science. CSU offers various degree programs and is recognized for its commitment to sustainability and community engagement.