Mogulof said the university hoped to be able to reschedule Coulter's appearance sometime in September, after identifying an appropriate venue and working out security arrangements.
University spokesman Dan Mogulof said concern about security during the event mounted last week after posters appeared on the walls of campus buildings threatening disruptions.
Coulter told the Washington Post that Berkeley had attempted to place "ridiculous demands" on her speech, including scheduling the event for the middle of that day so that only students could attend.
UC Berkeley has canceled a scheduled speech by conservative icon Ann Coulter over fears that it may spark further protests.
"We learned about the invitation to Ms. Coulter by reading about it in the newspaper", university officials said. "This is our third event in a row that has been canceled", Berkeley College Republicans spokesperson Naweed Tahmas said.
Berkeley is still reeling from a violent protest that erupted on April 15 when supporters and opponents of President Donald Trump clashed.
"In the wake of events surrounding the planned appearance by Milo Yiannopoulos in February, as well as several riots which have occurred in recent weeks in the City of Berkeley, we have increased our scrutiny regarding the time and location of high-profile speakers so that these events can go forward unimpeded", the vice chancellors wrote.
Organizers of the event released their own statement Wednesday, expressing discontentment at the change in plans. Coulter took to Twitter saying: "Instructing Berkeley student group to spare no expense in renting my speaking venue - part of my legal damages".
The Berkeley College Republicans reported Coulter as having said, "If Berkeley wants to have free speech, it can have it". "I'm an American. I have constitutional rights". But the school, which prides itself on being open to free speech regardless of viewpoint, said the event can not be held on campus because of the potential for violent protests between groups that support Coulter and those that disagree with her.
Group members have stressed that they have "no intention of acceding to these unconstitutional acts".
The event was being co-organized by a campus group called BridgeCal and the Young America's Foundation, a conservative group that books Coulter's campus speeches.
University officials have yet to respond to those declarations.