Ligation may refer to:

Ligation (molecular biology), the covalent linking of two ends of DNA or RNA molecules Chemical ligation, the chemoselective condensation of unprotected peptides In medicine, the making of a ligature (tie) Tubal ligation, a method of female sterilization Rubber band ligation, a treatment for hemorrhoids In coordination chemistry, making a bond between a ligand and a Lewis acid In orthodontics, a method of attaching the archwires to the brackets KAHA Ligation Ligation-independent cloning Typographic ligature forming

pl:Ligacja