CA5

CA5 may refer to:
 * California's 5th congressional district
 * USS Huntington (CA-5), a United States Navy Pennsylvania-class armored cruiser
 * United States Court of Appeals for the Fifth Circuit

CA 5 may refer to:
 * California State Route 5 (disambiguation)

Ca.5 may refer to :
 * Caproni Ca.5, an Italian heavy bomber of the World War I and post-war era

Ca5 may refer to:
 * Ca5 line, a regional Catalonia railway line

CA-5 may refer to:
 * CA-5, a highway in Honduras