D23

D23 may refer to:
 * Almirante Valdés (D23), a 1959 Spanish Fletcher-class destroyer
 * ARA Almirante Domecq Garcia (D23), a 1971 Argentine Navy Fletcher class destroyer
 * HMS Bristol (D23), a 1969 British Royal Navy Type 82 destroyer
 * HMS Premier (D23), a 1943 British Royal Navy escort aircraft carrier
 * D23 (Disney), the official fan club of The Walt Disney Company
 * Almirante Brión (D23), a Venezuelan Navy Almirante Clemente-class destroyer
 * D23 road (Croatia), a state road
 * LNER Class D23, a class of British steam locomotives