Jelly may refer to:

• Gelatin, a translucent brittle solid substance, extracted from the collagen inside animals' connective tissue
  • Gelatin dessert, referred to as jelly in Britain and other countries, popular brands include Jell-O, Rowntree's and Hartley's, and Aeroplane
• a type of Fruit preserves, in American English, specifically a clear fruit spread consisting of firmed fruit (or vegetable) juice made with pectin.
• Aspic, a dish containing broth with gelatin, served cold
• Gel, a colloidal system in which a porous network of interconnected nanoparticles spans the volume of a liquid medium
  • Salve, medical ointment
• Jellyfish, marine invertebrates of the class Scyphozoa
• Jelly fungus, the class Heterobasidiomycetes
• Jelly shoes, shoes made of a soft plastic, resembling sandals
• Naval jelly, phosphoric acid in a rust removing gel
• Petroleum jelly, a gel used as a topical ointment
• Royal jelly, made by bees and fed to the larvae to turn them into queen bees
• Temazepam, a powerful hypnotic drug, street name "Jellies"

In confectionery:

• Jelly bean, small and usually have a hard candy shell and gummy interior.
• Jelly baby, a type of soft confectionery in the shape of babies in a variety of colors
• Swedish Fish, a type of quasi-gummi chewy candies shaped like fish
• Gumdrop, brightly-colored gelatin- or pectin-based pieces, shaped like a truncated cone and coated in granulated sugar

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