Geister may refer to:
The plural form of the German word Geist
People Hans Geister (1928–2012), German track and field athlete Iztok Geister (born 1945), Slovene writer, poet, essayist and ornithologist Paul Geister (born 1972), Australian rules footballer William Geister (1876-1942), American politician
Television Geisters, an anime television series Geisters, antagonists in the anime television series Brave Exkaiser