Abigail Cavanaugh (born July 4, 2020) is a daugher of Johan Cavanaugh and the twin sister of Amelia Cavanaugh.
- Father: Johan Cavanaugh (1992-)
- Mother: Jenna Cavanaugh
- Brothers: Simon Cavanaugh (2018-), Kade Cavanaugh (2022-), Aiden Cavanaugh (2023-), Reggie-John Cavanaugh (2024-)
- Sisters: Amelia Cavanaugh (2020-)
- Grandmother: Roos Cavanaugh (née: ) ( -)
- Grandfather: Cavanaugh ( -)
- Her full name is Abigail Naomi Cavanaugh
- She was born 7 minutes before Amelia.
- She received a Barbie doll for Christmas 2026.