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The Moore League is a high school sports league in Southern California. It comprises seven schools: public traditional high schools of the Long Beach Unified School District plus Compton High School. The league is administered by the California Interscholastic Federation (CIF) Southern Section.

• Cabrillo High School
• Jordan High School
• Lakewood High School
• Millikan High School
• Polytechnic High School
• Wilson High School
• Compton High School

The Moore League was founded in 1957.^[1] As of 1963, Downey High School was a member, and Compton High was not yet a member. Cabrillo High was established in 1995, and became the Moore League's seventh member. El Rancho High School was a member of the Moore League from 1969 to 1971

The Moore League is named for Harry J. Moore, who was an educator in Long Beach, California. He held the following positions, titles and honors:

• Assistant Superintendent in the Long Beach Public Schools (Long Beach Unified School District)
• Director of High Schools, Public School System, Long Beach
• Honorary Inductee, Wilson High School Athletics Hall of Fame