Göran Greider (born 1959), Swedish social democratic journalist, author and poet
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Gerald Greider (1923–1982), Republican politician in Wisconsin, USA
In the mid-1990s, Greider was recruited by Michael D. West, founder of biotechnology company Geron (now CEO of BioTime) to join the company's Scientific Advisory Board.
The R.E.M. song "Departure" on the album New Adventures in Hi-Fi contains the lyric "Win a eulogy from William Greider".