Peter Armbruster (25 July 1931 – 26 June 2024[1]) was a German physicist at the Gesellschaft für Schwerionenforschung (GSI) facility in Darmstadt, Germany, and is credited with co-discovering elements 107 (bohrium), 108 (hassium), 109 (meitnerium), 110 (darmstadtium), 111 (roentgenium), and 112 (copernicium) with research partner Gottfried Münzenberg.
He was Senior Scientist at the Gesellschaft für Schwerionenforschung Darmstadt, GSI, from 1971 to 1996.
From 1989 to 1992 he was research Director of the European Institut Laue-Langevin (ILL), Grenoble.
Since 1996 he has been involved in a project on incineration of nuclear waste by spallation and fission reactions.
The American Chemical Society honoured Peter Armbruster (1997) as one of few non-Americans with the 'Nuclear Chemistry Award'.