AD-5 or variation, may refer to:
AD 5, the 5th year of the Common Era , an auxiliary cruiser of the U.S. Navy Douglas AD-5 Skyraider, fighter-bomber airplane AD5 experiment "ALPHA" at the CERN Antiproton Decelerator ring, an antimatter physics experiment Ad5, adenovirus serotype 5, a virus commonly used as a recombinant virus therapy vector (rAd5) Alzheimer's disease, stage 5 Alzheimer's Disease 5, a familial variant of Alzheimer's; see List of OMIM disorder codes
See also
5AD (radio station), Adelaide, South Australia, Australia Ad5-nCoV, COVID-19 vaccine Ad5-EBOV, Ebola vaccine 5 (disambiguation) AD (disambiguation)