I20, I 20 or I-20 may refer to: Interstate 20, a highway in the southeastern United States I-20 (form), a United States government document that provides supporting information for the issuance of a student visa or change of status I-20 (rapper) (born 1975), American rapper I-20 (sailing scow), a sloop rigged scow with a spinnaker I2O, a defunct computer I/O specification Hyundai i20, a car , a Type C submarine Kalmar Regiment (1816–1892), a Swedish infantry regiment Västerbotten Regiment (1893–1973), a Swedish infantry regiment See also L20 (disambiguation)