The star, who has battled serious mental health issues and drink and drug demons, was alleged to have fallen off the wagon during a trip to the United Arab Emirates earlier this month (Jun12).
He was pictured slumped in a chair and looking bleary eyed as he partied with pals, and was later said to have been seen staggering and dropping his phone at an airport after arriving back in the U.K.
But Gascoigne has now spoken out to rubbish the reports, insisting he is still sober.
He tells Britain's Daily Mirror newspaper, ""I didn't touch a drop of drink at that event. I spoke at the event and then socialised with the people who were there but I didn't drink. Sadly, somebody has spread a vicious lie about me.
""It's hurtful, and I'm angry about it. It means a lot to me that I am open and honest with my friends and family, and the suggestion that I haven't been is a complete lie.""