CA 37, CA-37, or California 37 may refer to:

• California's 37th congressional district, a congressional district in the U.S. state of California
• California State Route 37, a state highway in the northern part of California
• USS Tuscaloosa (CA-37), a United States Navy cruiser
• California 37 (album), the sixth studio album from pop rock band Train
• Calcium-37 (Ca-37 or ³⁷Ca), an isotope of calcium
• Caproni Ca.37, an Italian aircraft

Topics referred to by the same term

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