Big Blue is the name of a number of bands.
(1) A Croatian rock band with a dose of heavy metal. They were active from late 80's to 1997 when their singer Goran Karan started a solo career.
(2) A jazz quartet from Helsinki/Berlin: Jorma Kalevi Louhivuori on trumpet, Antti Kujanpää on piano, Jori Huhtala on bass and Joonas Leppänen on drums. They released their debut album Big Blue in December 2011.