Modification

Modification may refer to:


 * Modifications of school work for students with special educational needs
 * Modifications (genetics), changes in appearance arising from changes in the environment
 * Posttranslational modifications, changes to proteins arising from protein biosynthesis
 * Modding, modifying hardware or software
 * Mod (video gaming)
 * Modified car
 * Body modification
 * Grammatical modifier
 * Home modifications
 * Chemical modification, processes involving the alteration of the chemical constitution or structure of molecules