Vault 11 overseer's terminal password is a holotape in Fallout: New Vegas.
Location
It is added to the Pip-Boy inventory after reading the single entry on the Atrium terminal in Vault 11's lower level.
Transcript
According to the text of a speech that was given or scheduled to be given in the Vault 11 Atrium on overseer election day, the terminal password is "Betty."
