Shannon Lucid (born 1943), an American astronaut

Lucid dreaming

USS Lucid (MSO-458), a US Navy minesweeper that patrolled the Pacific Ocean

Lucid Inc., a software development company founded by Richard P. Gabriel in 1984

Lucid (programming language), a dataflow programming language

Lucid Records, an independent record label out of Deerfield, Illinois, United States

Lucid (Absinthe)[2], a spirit made from Grande Wormwood

Lucid (film) - The 2005 Canadian Film

Lucidity can refer to: In common usage, intelligibility, brightness or sanity Awareness of the dream stage; see Lucid dreaming Lucidity, a 2006 album by Delain another title for Seeing, a 2004 novel by José Saramago, original title Ensaio sobre a...

Lucid toolkit[3], a cross-platform Graphical User Interface toolkit.