Sansi

Sansi may refer to:
 * Sansi people, an ethnic group of India
 * Sansi language, an Indo-Aryan language
 * Sansi, Benin, in Borgou Department, Benin
 * Sansi Township, Xingtai, Hebei, China
 * Three Bureaus (三司; Sānsī), an office in imperial Chinese governments
 * Wu Sansi (died 707), Chinese official