IXS may refer to:

• IXS, IATA code for Silchar Airport in Assam, India
• IXS Enterprise, a conceptual interstellar faster-than-light spacecraft designed by NASA scientist Dr. Harold G. White

• Caile Ferate Romane Line 500
• Caile Ferate Romane Line 600
• Caile Ferate Romane Line 700
• Caile Ferate Romane Line 800
• Caile Ferate Romane Line 900
• Caile Ferate Romane main lines
• Caile (song)
• Caile (Tito El Bambino single)
• Cailey
• Cailhau
• Cailhavel
• Cai Li
• Cailiao metro station
• Cailifo
• Cai li fo
• Cailin Daxue Station
• Cailin o Chois tSiure me
• Cailin Og a Stor
• Cailin (song)
• Cailla
• Caillaba
• Caillac
• Caillat
• Caillau, Armand-Benjamin
• Caillaud