Saturday's parade has previously been banned by the police, but the city's liberal mayor has chosen to continue with the arrangement.
Several foreign politicians have announced that they will participate, including Swedish EU parliamentarian Alice Bah Kuhnke.
The President of the EU Commission, Ursula von der Leyen, has advised commissioners not to travel to Budapest, but has also urged the Hungarian regime to change its stance on the parade.
A quick response came from Orbán, who advised von der Leyen not to interfere with member states' domestic issues.
Aside from potential legal consequences, visitors to Budapest Pride should not be worried about violence, according to Orbán.
Hungary is a civilized country. We do not harm each other, he says according to Politico.
Corrected: In an earlier version, Orbán was given the wrong title.
