Sas or SAS may refer to:

Sergeant ‘Andy McNab’ DCM MM (born 28 December 1959) is the pseudonym of an English novelist and former SAS operative and soldier.

McNab came into public prominence in 1993, when he published his account of the Special Air Service (SAS) patrol, Bravo Two Zero for which he was awarded the Distinguished Conduct Medal in 1991. He had previously received the Military Medal in 1980, awarded for an action whilst serving with the Royal Green Jackets in Northern Ireland during 1979.

In addition to Bravo Two Zero he has written two other autobiographies and a number of fiction books.

McNab was born on 28 December 1959. Found abandoned on the steps of Guy's Hospital in Southwark, he was brought up in Peckham, with his adoptive family. He did not do well in school so dropped out and worked at various odd jobs, usually for friends and relatives, and was partly inspired to join the British Army because of his brother's time in the army.

He was involved in petty criminality until being arrested for burglary. In 1976, shortly after his arrest, he aspired to a career as an army pilot, but failed the entry test. In the same year, he enlisted with the Royal Green Jackets at the age of sixteen.

Kurt Donald Cobain (February 20, 1967 – April 5, 1994) was an American singer-songwriter, musician and artist, best known as the lead singer and guitarist of the grunge band Nirvana. Cobain formed Nirvana with Krist Novoselic in Aberdeen, Washington in 1985 and established it as part of the Seattle music scene, having its debut album Bleach released on the independent record label Sub Pop in 1989.

After signing with major label DGC Records, the band found breakthrough success with "Smells Like Teen Spirit" from its second album Nevermind (1991). Following the success of Nevermind, Nirvana was labeled "the flagship band" of Generation X, and Cobain hailed as "the spokesman of a generation". Cobain, however, was often uncomfortable and frustrated, believing his message and artistic vision to have been misinterpreted by the public, with his personal issues often subject to media attention. He challenged Nirvana's audience with its final studio album In Utero (1993).

During the last years of his life, Cobain struggled with heroin addiction, illness and depression. He also had difficulty coping with his fame and public image, and the professional and lifelong personal pressures surrounding himself and his wife, musician Courtney Love. On April 8, 1994, Cobain was found dead at his home in Seattle, the victim of what was officially ruled a suicide by a self-inflicted shotgun wound to the head. The circumstances of his death at age 27 have become a topic of public fascination and debate. Since their debut, Nirvana, with Cobain as a songwriter, has sold over 25 million albums in the U.S. alone, and over 50 million worldwide.