Matthias Arios
- Full Name: Matthias Arios
- Born: c.2368 (DS9 Novel: Mission Gamma: This Gray Spirit)
- Eight years old as of June 2376
- Species: Bajoran/Human hybrid
- Distant Vulcan blood on mother's side
- Gender: Male
- Father: Chon Sibias
- Mother: Phillipa Matthias
- Sister: Matthias Mireh
- By June 2376: Resident, Deep Space 9 (DS9 Novel: Mission Gamma: This Gray Spirit)