Geki is Japanese for "Strike" or "Fierce" and may refer to:
A male shaman Geki (driver) (1937–1967), pseudonym of Giacomo Russo, an Italian race car driver Geki (Mishima), a last manifesto by Yukio Mishima in 1970 Juken Sentai Gekiranger, a Japanese television program Geki, a fictional ninja in Street Fighter arcade games Geki/Tyranno Ranger, a fictional character in Kyōryū Sentai Zyuranger tokusatsu television series Bear Geki, a character in Saint Seiya
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