Zelensky's video address to Austria's lower house, the National Council, is scheduled for March 30.
"For us, this has nothing to do with Austria's neutrality, and therefore [we] will organize a protest on Thursday," Kickl said at a press conference.
He also said that Zelenskyy's planned speech was further evidence that all other parties in Austria had abandoned neutrality, even if they claimed otherwise.
Additionally, Kickl said that this should not happen, just as there should not be speeches made by the Russian side or representatives of other countries participating in conflicts.
He added that there were many platforms and formats, within which Zelenskyy could express his position, but this was unacceptable at the official level in the Austrian parliament.