CL-52

CL-52 or variation, may refer to:


 * Canadair CL-52 Stratojet, RCAF jet bomber from the 1950s
 * Chlorine 52 (Cl-52; 52Cl), an isotope of chlorine
 * CL52, a type of vacuum tube; see List of vacuum tubes
 * USS Juneau, WWII USN Atlanta-class light cruiser, whose sinking killed the five Sullivan brothers