Flubber can refer to:
- Flubber, a fictional material in the 1961 Disney film The Absent-Minded Professor
- Son of Flubber, a 1963 sequel to The Absent-Minded Professor
- Flubber (film), a 1997 remake of The Absent-Minded Professor
- Flubber (material), a visco-elastic material often used in children's science projects
- Flubber, an Xavier Institute student in the fictional Marvel Comics universe
- Flubber (album), a 1989 album by Souled American