Blue Day is a compilation album by English band Slowdive.
Blue Day may also refer to:
"Blue Day" (Mi-Sex song), 1984 "Blue Day" (Suggs song), 1997 "Blue Day", a 2001 song by American Hi-Fi from American Hi-Fi
See also "Blue Blue Day" "Blue Morning, Blue Day" Born on a Blue Day, a memoir by autistic savant Daniel Tammet Blue Monday (disambiguation)