Phillipa Matthias
- Full Name: Phillipa Matthias
- Species: Human
- Distant Vulcan ancestry generations back on father's side (DS9 Novel: Mission Gamma: This Gray Spirit)
- Gender: Female
- Husband: Chon Sibias ( - 2368 - 2376 - )
- Son: Matthias Arios
- Daughter: Matthias Mireh
- Studied on Alpha Centauri (DS9 Novel: Mission Gamma: This Gray Spirit)
- Five years of field research, interspecies anthropology (DS9 Novel: Mission Gamma: This Gray Spirit)
- Studying body language, physiological reactions of various species (DS9 Novel: Mission Gamma: This Gray Spirit)
- By May 2376: Lieutenant commander, counselor, Starfleet; Deep Space 9 (DS9 Novel: Mission Gamma: Twilight; Mission Gamma: This Gray Spirit)