AYW may refer to:
* A sub-type of
Hepatitis B
Hepatitis B is an infectious disease caused by the ''Hepatitis B virus'' (HBV) that affects the liver; it is a type of viral hepatitis. It can cause both acute and chronic infection.
Many people have no symptoms during an initial infection. Fo ...
virus surface antigen
*
Aberystwyth railway station
Aberystwyth railway station is a railway station in the town of Aberystwyth, Ceredigion, Wales. It is served by passenger trains operated by Transport for Wales: it is the terminus of the Cambrian Line west of Shrewsbury. It is also the terminu ...
(National Rail code: AYW), a railway station in the United Kingdom
*
Ayawasi Airport (IATA code: AYW), an airport in Indonesia
{{disambiguation