Julin may refer to:Julin (surname) Julin, Warmian-Masurian Voivodeship a settlement in Julin, a semi-legendary medieval settlement thought to be identical with Jomsborg, Vineta and the modern town of Wolin in north-west Poland Operation Julin, a series of nuclear tests conducted in 1991–1992 by the United States Julin Bristol, codename of the nuclear weapon test conducted at the Nevada Test Site on 26 November 1991