AIFS

AIFS may refer to


 * Auckland Integrated Fares System, a predecessor to the proposed public transport payment system for New Zealand
 * Australian Integrated Forecast System (meteorology)
 * American Institute For Foreign Study, est. 1964
 * Arbitration Inter Frame Spacing, a method of prioritizing transmissions on a wireless network
 * Associazione Italiana Football Sala, the old name for the current Federazione Italiana Football Sala
 * Australian Institute of Family Studies