DCX may refer to:
Science and technology
- McDonnell Douglas DC-X, an uncrewed prototype spacecraft
- Digital customer experience
- DCX (gene), which encodes the protein doublecortin
- .dcx (DCX), a document image format, the Multipage PCX
- 610 (number) (Roman numerals)
Other uses
- Dixie Chicks, an alternative-country band
- Delta Chi Xi, an honorary professional fraternity
- Brocade Communications Systems Backbone network switch