Defi

Defi may refer to:


 * DéFI (Démocrate fédéraliste indépendant), a political party in Belgium
 * Defi language
 * Défi sportif, disabled multisport event
 * Le Défi, a defunct America's Cup syndicate from France
 * Le Défi Media Group, mass media company in Mauritius
 * 10332 Défi, a main belt asteroid discovered in 1991
 * Decentralized finance, a form of finance based on cryptocurrencies