XX
XX stands for:
- the specifically female chromosome pair xx, see X chromosome
- the roman numeral for twenty
- Abbreviation for bi- exciton
- Identification of the division / military area command, see military symbols
- XX (film) , a 2017 American horror film
XX as a distinguishing mark on license plates:
- Greece: Athens , reserved for future approvals
- Norway: Mosjøen in Nordland Province
- Czech Republic: members of the technical staff of diplomatic missions
xx stands for:
- Second charge of a student union, see batch (student union) #Chargen characters and brackets
- Identification of the English thoroughbred horse breed in pedigree papers
- The xx , British indie rock band
- xx (album) , debut album by The xx
