The sky is the area above Earth.

Spectral karyotype (SKY technique), a molecular cytogenetic technique for matching chromosomes to colors for visualization

Sky Sports, a British pay television network that broadcasts sport-related programming, including the English Premiership:

SKY Italia, News Corporation's Italian digital satellite service

Sky Mangel, a character from the Australian television soap opera Neighbours

SKY Network Television in New Zealand

Sky Financial Group Inc. (also "Sky Bank"), a banking service in the Midwest since bought out by Huntington Bancshares Inc.

Sky Tate, a character from the Power Rangers television series universe

Sky Movies, a British pay television network that broadcasts movies with 12 channels.

Chicago Sky, a WNBA team chartered in 2006

Saturn Sky, a two seat roadster manufactured by Saturn

SKY (schools), a collective nickname for the three most prestigious universities in South Korea

SKY Perfect, Japan's main provider of satellite television access.

SkyEurope, an airline

Sky (Malaysian TV series), a Malaysian Chinese "idol drama"

Skymark Airlines, an airline with ICAO code SKY

Sky (Canadian band), a Montreal pop music duo

Sky (band), a British progressive rock band, fronted by John Williams

Sky Lopez (Corrie Floris), an American pornographic actress, model, and now hip hop artist.

Sky Magazine, a magazine sent free of charge to BSkyB's subscribers.

SKY magazine, a UK entertainment magazine published between the late 80s and June 2001.

Sky & Telescope, an amateur astronomy magazine

Sky (album), an album by J-pop artist Yui Horie

Sky Channel, several television channels and radio channels

Sky (TV serial), a British children's television series of the 1970s

SKY Latin America is a satellite television carrier for Mexico, Argentina, Brazil and Colombia.

Sky (US band), an American country rock band

"Sky" (song), a 2000 breakbeat single by Sonique

British Sky Broadcasting (BSkyB) and its Sky Digital service which replaced Sky Television.