Blake beat Australian TV stars including comedian Adam Hills, actress Asher Keddie and The Project co-host Carrie Bickmore to be named the most popular personality on Australian television.
> Logie Awards 2012: Winners and nominees in full
The comedian and broadcaster said that he had no idea that an embargo on the winners had accidentally been broken, leading to the result being shared early across social networking sites and appearing on Google.
Blake told reporters after the ceremony: "I have been to many events and I was expecting a slip-up... ultimately all that information was kept from me so it was a genuine surprise.
"If you watch it closely when I walk up, [presenter Shaun Micallef] did have to show me the name so I knew I won the Logie."
He also joked that Micallef had promised him earlier in the weekend that he would say Blake had won the award at first even if somebody else had triumphed, in order to make him feel like a winner.
Blake thanked his comedy partner Andy Lee during his acceptance speech, saying: "We are the luckiest guys in the world. Andy, this is half yours."
The duo lost out in the Silver Logie category for 'Most Popular Presenter' to Hills, who was honoured for his work on Spicks and Specks and Adam Hills in Gordon St Tonight.
> Hamish Blake 'wants to get married at Logie Awards to save money'
Picture Gallery - TV Week Logie Awards 2012 arrivals: