Hay fever (disambiguation)

Hay fever is an inflammatory reaction to allergens in the air.

Hay fever or hayfever may also refer to:
 * Hayfever (song), 1993 song by Trashcan Sinatras
 * Hayfever (film), 2010 romantic comedy
 * Hay Fever (play), 1924 comic play by Noël Coward
 * Hay Fever (The Green Green Grass), episode of The Green Green Grass