title: Ro-57
text: # Ro-57
  
  Ro-57 may refer to:
  
  * IMAM Ro.57, an Italian fighter aircraft of 1939
  * Japanese submarine Ro-57, an Imperial Japanese Navy submarine in commission from 1922 to 1945
  * Ro-57-class submarine, an alternative name for the Type L3 subclass of the Japanese Type L submarine
  