IRF

IRF may refer to:

General

 * Impulse response function
 * Inertial reference frame
 * Information Retrieval Facility
 * Initial Reaction Force or Internal Response Force
 * Immediate Response Force
 * Institute of Space Physics (Sweden), (Institutet för rymdfysik)
 * Interferon Regulatory Factor (e.g. IRF6)
 * International Rectifier, New York Stock Exchange symbol IRF

Foundations/organizations

 * International Ranger Federation
 * International Rabbinic Fellowship
 * International Rogaining Federation
 * Islamic Research Foundation
 * International Rafting Federation
 * International Ringette Federation
 * International Road Federation

Computing

 * Intelligent Resilient Framework, Virtual Switch Chassis Aggregation