Penumbra may refer to:
1) A gothic metal band from Paris, France.
2) A name for Mark Warren's ambient project.
3) An alternative rock band from Japan.
4) A Post-rock band from Palangkaraya, Indonesia 1) Penumbra (gothic metal band)
Formed in Paris, France in 1996. Their lyrics are themed toward love, angels, witches, death, and emotions.