The Darwiche–Razzak–Fahda family conflict was a series of murders and assaults among three Australian families of Lebanese descent in south-west Sydney, New South Wales, occurring between February 2001 and March 2009. Some family members were part of rival cannabis operations, and marital breakdowns were also reportedly a factor. Khadjie Darwiche was married to Ali Abdul Razzak, and Ramzi Aouad was married to Donna Fahda; both marriages broke down, contributing to the escalating violence.
The conflict reportedly began with a February 2001 confrontation between Adnan Darwiche and Bilal Razzak at a Bankstown cafe, followed by shootings at both families' residences. A period of relative peace followed the 2001 death of Darwiche patriarch Farouk Darwiche, during which Adnan Darwiche reportedly abandoned his drug business and became more religious. The feud reignited in 2003 with the shooting of Khaled Taleb, the Yanderra Street shooting, and the murder of Ali Abdul Razzak outside Lakemba Mosque, for which Adnan Darwiche was later acquitted and no one else was charged.
The violence escalated further with the Lawford Street murders on 14 October 2003, in which Ziad Razzak and Mervat Nemra were killed in a shooting at a Greenacre house, and the murder of Ahmed Fahda on 30 October 2003 at a Punchbowl service station. Naseam El-Zeyat and Ramzi Aouad were convicted of Fahda's murder, but successfully appealed in 2011; a new trial was ordered, and the charges were later dropped by the Director of Public Prosecutions in May 2012. Further incidents included the Kings Head Tavern shooting in December 2003 and the Mons Street shooting in May 2004, the latter resulting in convictions against Mohamed Razzak that were partly overturned on appeal.
Trials arising from the conflict took place in the Supreme Court and District Court of New South Wales. On 9 August 2006, Adnan Darwiche was convicted in relation to the shooting of Bilal Razzak, the Yanderra Street shooting and the Lawford Street murders, and acquitted of the murder of Ali Abdul Razzak; El-Zeyat, Aouad and Osman were also convicted of the Lawford Street murders. On 10 November 2006, Justice Bell sentenced Adnan Darwiche to two terms of life imprisonment and 20 years, and El-Zeyat and Aouad each to three terms of life imprisonment; Osman received 27 years.
Nearly five years after the last recorded family violence, Abdul Darwiche was shot and killed on 14 March 2009 outside a restaurant in Bass Hill in front of his family. Police suspected the killing was carried out by Mohammed Fahda in revenge for his brother Ahmed's 2003 murder. Mohammed Fahda was arrested on 28 September 2009, convicted of the murder, and sentenced to 14 years' imprisonment; an appeal of his conviction was dismissed.
In July 2020, crime journalist Mahmood Fazal published an essay on the conflict, focusing on Ramzi Aouad's case and detailing allegations of police corruption, intimidation and coercion in the judicial process, along with allegations of financial cooperation between the NSW Police Force and an alleged crime family.