RDI

RDI may refer to:

Organisations

 * Ici RDI, formerly Réseau de l'information, a Canadian French language news channel owned by Radio-Canada
 * Rassemblement démocratique pour l'indépendance, unofficial banner of dissident deputies of Parti Québécois in 1984–1985
 * RDI Video Systems, a video game company
 * Renew Democracy Initiative, an American political organization promoting and defending liberal democracy
 * Resource Development International, Louisville, Kentucky organization that works on water, sanitation, education, and community development projects
 * Response Dynamics, a conservative direct marketing firm
 * Rural Development Institute, Canadian research center

Science and technology

 * Radar Doppler à Impulsions, air intercept radar on French Mirage 2000C fighters that was developed from the Radar Doppler Multifunction
 * Reference Daily Intake or Recommended Daily Intake, a quantity of recommended nutrient intake
 * Relationship Development Intervention, a treatment for autism
 * Resistance Database Initiative, a not-for-profit HIV/AIDS research organisation
 * Respiratory disturbance index, a tool for measuring frequency of breathing related sleep disturbances
 * RDI register, a 64-bit processor register of x86 CPUs
 * Reflected DOM Injection, an XSS technique

Other

 * Royal Designers for Industry, a British honour bestowed on leading designers by the Royal Society of Arts