Demixenby, also known as Demixenbie, is a nonbinary and xenogender identity with multiple definitions:
- A multigender person who is both demixenogender and deminonbinary (possibly in addition to other genders)
- A monogender person who feels their gender is a singular "fusion" of demixenogender and deminonbinary
- A person whose gender is some percent demixenogender and some percent deminonbinary, making both only partial components of their gender and therefore demigender components
- A genderfluid person who is fluid between demixenogender and deminonbinary (and possible other genders as well)