Salpeter, Salpetre or Saltpeter most commonly refers to Nitre, KNO3.
It may also refer to:
11757 Salpeter a minor planet found in 1960 by a team from Palomar Observatory
Nitratine (Chile saltpeter), the mineral form of sodium nitrate, NaNO3
People with the last name Salpeter
Edwin Ernest Salpeter (1924–2008), U.S. astronomer
Bethe–Salpeter equation describes two-particle quantum field binding, derived by Hans Bethe and Edwin Salpeter
Salpeter process a process of nuclear fusion mathematically defined by Edwin Salpeter
Greta Salpeter (born 1988), U.S. musician