Police say a 21 year-old man has been charged with attempted murder after an incident in the early hours of Saturday in Clwyd Street, Ruthin.
Connor Hooley, 21 will appear before Llandudno Magistrates later.
A 21-year- old female arrested has been released on police bail pending further inquiries.
A 36-year- old man remains in a critical condition in hospital. His family is being supported by specially trained officers.