Denke is a surname of German origin, meaning "think". Notable people with the surname include: Denké Kossi Wazo (1958-2014), full name Julien Kossi Denke, Togolese international football player. Karl Denke (1860-1924), German serial killer and cannibal. See also. Denk (disambiguation) Denker https://en.wikipedia.org/wiki/Denke