Phenolic is an adjective and a substantive (noun) that may apply to :
- Natural phenolics and polyphenols, two related classes of natural compounds found in plants
- Phenol (or carbolic acid), a colorless crystalline solid and aromatic compound
- Phenols, a class of chemical compounds t include phenol
- Phenolic resin
- Phenolic paper, a type of cardboard used for printed circuit boards