Windowpane may refer to:
- Paned window and window, an architectural element
- Windowpane (song) (1990)
- "Windowpane", an Opeth song from the album Damnation
- [4.4.4.4]Fenestrane, in organic chemistry is a type of chemical compound with a central quaternary carbon atom which serves as a common vertex for four fused carbocycles
- Windowpane, a piece of gelatin containing LSD
- Windowpane flounder (Scophthalmus aquosus), fish from Scophthalmidae family
- Windowpane Coconut
- Windowpane oyster, a bivalve marine mollusk in the family of Placunidae
