D26 may refer to:
Ships , an Allen M. Sumner-class destroyer of the Argentine Navy , a Gearing-class destroyer of the Brazilian Navy , a Ruler-class escort carrier of the Royal Navy , a W-class destroyer of the Royal Navy
Other uses D26 road (Croatia) Dewoitine D.26, a French military trainer aircraft IVL D.26 Haukka I, a Finnish prototype fighter aircraft LNER Class D26, a class of British steam locomotives