F43

F43 may refer to:

Ships

 * BRAZILIAN FRIGATE Liberal, a Niterói-class frigate of the Brazilian Navy
 * HMS Tartar (F43), a Tribal-class destroyer of the Royal Navy
 * HMS Torquay (F43), a Whitby-class frigate of the Royal Navy
 * INS Trishul (F43), a Talwar-class frigate of the Indian Navy

Other uses

 * Downtown Airport (Arkansas), in El Dorado, Arkansas