Blay (disambiguation)
Blay is the name of a French commune:
- Blay in the Calvados department
 
Blay is a family name for the following people:
- Eddie Blay (1937-2006), Ghanaian boxer
 - Frederick Worsemao Armah Blay ( Freddie Blay ; *?), Ghanaian politician
 - Kabral Blay-Amihere (* 1953), Ghanaian diplomat
 - Miquel Blay i Fàbregas (1866–1936), Catalan sculptor
 - Norge Blay (* 1967), Cuban water polo player
 - Pep Blay (* 1966), Catalan writer