The victim, aged 20, suffered life-changing injuries in the assault in the town centre club on Saturday, November 19, at around 2.40am.
West Mercia Police has issued a wanted appeal for Arthur McDonagh.
A police spokesman said; "Anyone who has seen McDonagh or has information about his whereabouts is asked to call 999 immediately."
The 27-year-old, from Telford, also has connections with North Wales and Manchester, officers say.
West Midlands Ambulance Service said at the time they had provided trauma care at the scene before taking the man to hospital.
WANTED | Have you seen Arthur McDonagh?— West Mercia Police (@WMerciaPolice) January 30, 2023
McDonagh is wanted for assault following an incident at Central Square in #Newport on Saturday 19 November 2022.
📱 Anyone who has seen McDonagh or has information about his whereabouts is asked to call 999 immediately. pic.twitter.com/NoYf1GdERK