Sifo may refer to: Kantar Sifo, a Swedish company operating in the field of opinion and social research. Liu Shifu (劉師復), Chinese anarchist who wrote in Esperanto under the pseudonym Sifo. Sifo Company, a former American toy manufacturer. This disambiguation page lists articles associated with the title Sifo.If an internal link led you here, you may wish to change the link to point directly to the intended article. Wikiwand - on Seamless Wikipedia browsing. On steroids.