Vestibule or vestibulum may refer to:
Architecture Vestibule (architecture), small room leading into a larger room Porch, room or gallery in front of a building's entrance
Anatomy Aortic vestibule Laryngeal vestibule Nasal vestibule Vestibule of the ear Vulval vestibule Area of the human mouth between the lips and the teeth
Other uses Dleskovec Plateau in northern Slovenia Covered area outside the opening of a tent
See also Articulated bus or vestibule bus Vestibuled train Vestibule of Hell from Dante's Inferno