Formation can refer to:

• Formation (military), a high-level military organization
• Formation (football), tactical formation in association football
• Formation (American Football), a set-up before the snap in American football
• Derivation (linguistics), the process of creating new lexemes from other lexemes
• Back-formation, a word formed from an erroneous reconstruction an original linguistic form from a form mistakenly thought to be derived from it.
• Offer and acceptance, an analysis of contract formation in law
• Geologic formation, a formally named rock stratum or geological unit

フォーメーション | Vojaške formacije