XF6

XF6 may refer to:

Aircraft

 * Boeing XF6B, experimental biplane fighter
 * Curtiss F6C Hawk (experimental designations XF6C-4 to XF6C-7), biplane fighter
 * Grumman F6F Hellcat (experimental designations XF6F-1 to XF6F-6), monoplane fighter

Other uses

 * The X Factor (British series 6), British TV series
 * Yamaha MOTIF XF6, electronic keyboard