Demo 1 may refer to:
Spaceflight Crew Dragon Demo-1, or SpaceX Demo-1 or Crew Demo-1, the first orbital test of Dragon 2 SpaceX COTS Demo Flight 1, the first orbital spaceflight of Dragon SSC Demo-1, or Dream Chaser Demo-1, the planned first flight of Dream Chaser
Music Albums Demo 01, a 2017 EP by Pentagon The Demo Album 1, by Stephen Bishop, 2003 Demo 1, a demo by Pentagram Chile, 1987 Unreleased Demo #1, a cassette by Neutral Milk Hotel, 1993 Demo 1, a demo by Inhume, 1995 Demo 1: 2005, a demo by Diocletian, 2005 Demo 1, a demo by The Shondes, 2006
Songs "Blacktro (Demo 1)" by Jerome Sydenham and Joe Claussell, on the soundtrack of Kvadrat