Glimmer may refer to:

• GLIMMER, a gene prediction software package

Music

• Glimmer, a 1999 album by Sundown

• The Glimmer Twins, a pseudonym used by Mick Jagger and Keith Richards of The Rolling Stones

• "Glimmer" (song), a song by Delerium

• "Glimmer", the B-side to John Foxx's song "No-One Driving"

• Glimmer Best of John Foxx, a 2008 compilation album

• "Glimmer", a song by Tame Impala from the 2020 album The Slow Rush

Film and TV

• Glimmer (She-Ra), a television cartoon character

• Gateway to Glimmer, alternate name for the video game Spyro 2: Ripto's Rage!

• Glimmer (or glim), a reflective device used for cheating in poker or other card games

• Glimmer, a character in The Hunger Games trilogy

• Starlight Glimmer, a character in the series My Little Pony: Friendship Is Magic