Nakajima A6M2-N (eng. Nakajima A6M2-N) — Japanese float fighter of all-metal construction.
Developed under the guidance of engineers Niitaka and Tazimina on the basis of fighter A6M "zero". The first flight of the prototype took place on 8 December 1941.
Adopted in early 1942 under the name of gidrostroitel marine type 2.
Name of the allies, "Ruth" ("Rufe").