Sammy McGhee, from Castlemilk in the south of the city, was described as a "jovial big guy" who loved music and always had a smile on his face.
The 56-year-old was killed after the police helicopter crashed through the roof on Friday night.
He is the fifth victim to be named by police and one of the six people who was in the bar to die.
Tributes were earlier paid to Gary Arthur, 48, from Paisley, who was also in the pub at the time of the crash.
All three of the helicopter crew members - pilot David Traill, 51, and police officers Kirsty Nelis, 36, and Tony Collins, 43, also died.
John McGarrigle, 59, from Castlemilk, and Mark O'Prey, from East Kilbride, are still missing.
Widower Mr McGhee, who lost his wife Lizzie to an illness around three years ago, leaves behind his daughter Kerry and son Michael.
He lived in Glenacre Street with the family before moving to a house close by.
Mr McGhee, believed to be a former postman, then moved home to Blaeloch Drive and then onto a flat in Holmbyre Road a few months later.
Neighbours called Mr McGhee, who loved football and supported Celtic, a "very kind man".
Derek Smith, 52, who has lived in the area for 12 years, said: "He always spoke to you and never had a smile off his face. We feel very shocked to find out that he's died.
"His wife was very nice too. He seemed a very kind man. He looked after her."
Missing John McGarrigle is known well in the Castlemilk area and local people are fearing the worst.
Mr Mathieson said "Nine people have died so far in this crash and two of them are from Castlemilk. We can't believe it.
"John is a good guy. I know his kids and they are very, very close to their dad.
"You can see the way young John is acting, how much they care for him."
Alfie Brown, 76, said: "Everyone will struggle to come terms with it."
Eddie Mullen, 76, said: "It's a terrible tragedy and everyone will feel it in Castlemilk."
Andy Hinde, 64, added: "Everyone knows each other here. Everyone will pull together."