Irving, who was banned from Germany altogether for ten years in 1993, says he will be in Berlin on September 10 for a meeting, promising to be in the "heart of Berlin" for attendees to pay €91 to hear him speak.
But after Green Party manager Volker Beck got in touch with the German association of hotels (Dehoga), the group said they would not offer Irving a place to stay.
"I trust that Irving will not be accommodated by our members," Dehoga manager Thomas Lengfelder told the Tagesspiegel newspaper. Most of the capital city's large hotels are members of the group, although smaller guest houses are often not.
Many hotels avoid renting out event rooms to doubtful customers as far-right extremists often attract the attention of left-wing groups - who have promised demonstrations if they discover where the 75-year-old British historian is speaking.
Irving was extradited from Germany in 1993 after being convicted of insulting the dead after he disputed that gas chambers at the Auschwitz death camp had killed hundreds of thousands of people.
He successfully appealed against the Munich court's decision to keep him out of Germany until 2022, and saw the ban lifted in March this year.