1864 is een Deense dramaserie van de zender DR1. De serie ging in première op 12 oktober 2014.
Het verhaal gaat over de historische nederlaag van Denemarken in de slag bij Dybbøl in 1864, een oorlog die de Denen uitvochten met Duitsland om de hertogdommen Sleeswijk en Holstein. In deze oorlog verloor Denemarken 40% van hun land en 20% van de bevolking.
Denmark is in a state of shock. The army has been destroyed and the country now lies open to the Prussians. The rug is pulled out from under Monrad when his former supporters turn their backs on him. Back at the estate, Inge has to give in to the predetermined fate she tried so hard to break free of. Johan seeks out the families of the fallen and must watch as their hopes are extinguished. But for some there is hope yet for the future. A new Denmark can be rebuilt.