LZ may refer to:
LZ77 and LZ78 are the two lossless data compression algorithms published in papers by Abraham Lempel and Jacob Ziv in 1977 and 1978.
Elizabeth Mae Hale (born October 10, 1983) is an American singer, songwriter, and musician. She is best known as the lead singer and rhythm guitarist of the American hard rock band Halestorm, which she co-founded in 1997.
LZ7 are a Christian electronic dance music group from Manchester. The band was formed in 2005 by Lindz West, a member of dance band The Tribe, who had split up the previous year.
Elzie Lee "LZ" Granderson (born March 11, 1972) is an American journalist and former actor. He is currently a senior writer and columnist for ESPN The Magazine, a co-host of SportsNation on ESPN, co-host of Mornings With Keyshawn, LZ and Travis on ESPN LA 710, and a columnist for CNN.