SXI

SXI may refer to:


 * Standex International, an American multinational manufacturer of food service equipment, engravings, engineering technologies, electronics and hydraulics
 * Solar X-ray Imager, a full-disc X-ray telescope for the Sun
 * St. Xavier's Institution, a boys school in Malaysia
 * Sirri Island Airport (IATA code: SXI), Iran
 * OpenOffice.org XML file format (sxi), used for presentations.