The book will be open today and tomorrow.
A book of condolence will open for the late Gay Byrne at the Mansion House in Dublin from 11am to 5pm today and tomorrow between 10am and 5pm.
The legendary broadcaster, who died yesterday aged 85 after a long illness, hosted The Late Late Show for 37 years.
President Michael D Higgins led the tributes describing Mr Byrne as a man of great charisma, who was possessed of effortless wit, charm, and who had a flair for broadcasting.
Colleagues, journalists and entertainers from home and abroad shared their thoughts on a media legend.
Pat Kenny, who took over from Mr Byrne as Late Late Show host in 1999, said he visited him a day before he died “when it was quite apparent that there weren't too many days or hours left”.
“But a few weeks ago myself and Harry Crosbie had lunch with him. He was in great form, and had his usual whiskey and enjoyed lunch, a great appetite.
"So I had hoped that he would overcome the current bout of illness, but alas, it wasn't to be,” Mr Kenny told RTÉ Radio 1’s Drivetime.
Current host, Ryan Tubridy, said on social media that the nation "lost an icon and I lost a friend. He was a once-off and everyone will miss the inimitable Gay Byrne."
