8X or 8-X may refer to:
8x, or eight times in multiplication 8X, code name for Enhanced Imaging System 8X, abbreviation for Octuple scull Precorrin-8X methylmutase South African Class 8X 2-8-0 locomotive 8X Bayshore; see List of San Francisco Municipal Railway lines Typ 8X; internal designation for Audi A1 HTC Windows Phone 8X
See also X8 (disambiguation)