Tony O'Neill is an English writer based in New York, born in Blackburn, Lancashire. He emerged from a unique background as a musician, having played with bands such as Kenickie (1997–98), Marc Almond (1997–98), The Brian Jonestown Massacre (1999), and Kelli Ali (2001–04). He is known for his contributions to the genres of Literary Fiction, Non-Fiction, Poetry, and Drug-Lit.

His notable works include: "Digging the Vein" (2006), "Down and Out on Murder Mile" (2008), "Sick City" (2010), "Black Neon", "Notre Dame du Vide", "Songs from the Shooting Gallery", and "The Savage Life".

O'Neill is associated with the literary movements of Brutalism, Offbeat Generation, and Drug-Lit. He has been active in his writing career since 2005 and continues to contribute significantly to contemporary literature.