Ubiquity is a synonym for omnipresence, the property of being present everywhere.
Ubiquity may also refer to:
Ubiquity (software), a simple graphical installer made for the Ubuntu operating system,
Ubiquity Records, an American music label,
Ubiquity (Firefox), an experimental extension for the Firefox browser,
Ubiquiti Networks (Technology), a Network Hardware/Software company also known as ubnt,
Ubiquity_(role-playing_game_system), a table-top RPG system