[[Image:Cucurbituril gyroscope AngewChemIntEd 2002 v41 p275 hires.png|thumbnail|200px|Supramolecular complex of a chlorine ion, [[cucurbituril|cucurbit[5]uril]], and [[cucurbituril|cucurbit[10]uril]] reported by Day and coworkers in Angew. Chem. Int. Ed., 2002, 275-277.]]

Supramolecular chemistry refers to the area of chemistry that focuses on the noncovalent bonding interactions of molecules. While traditional chemistry focuses on the covalent bond, supramolecular chemistry examines the weaker and reversible noncovalent interactions between molecules. These forces include hydrogen bonding, metal coordination, hydrophobic forces, van der Waals forces, pi-pi interactions and electrostatic effects. Important concepts that have been demonstrated by supramolecular chemistry include molecular self-assembly, folding, molecular recognition, host-guest chemistry, mechanically-interlocked molecular architectures, and dynamic covalent chemistry. The study of non-covalent interactions is crucial to understanding many biological processes from cell structure to vision that rely on these forces for structure and function. Biological systems are often the inspiration for supramolecular research.