52

52 may refer to:
 * 52 (number)
 * one of the years 52 BC, AD 52, 1952, 2052
 * 52-hertz whale an individual male whale, also known as the loneliest whale, calling at the unusual 52 hertz range
 * 52 (comics), a 2006–07 American weekly comic book series
 * 52 (album series), series of albums by American singer Kristian Bush
 * 52 Europa, a main-belt asteroid
 * Tatra 52, a mid-size car