Anti-Hungarian sentiment also known as Hungarophobia, Anti-Hungarianism, Magyarophobia or Antimagyarism is dislike, distrust, racism, or xenophobia directed against a Hungarians. It can involve hatred, grievance, distrust, intimidation, fear, as well as hostility towards the Hungarian people, language in addition to culture.
During the existence of the Kingdom of Hungary and Croatia, the Banate of Bosnia was accused of holding the alleged Cathar anti-pope Nicetas. assumption that the Kingdom of Hungary and Croatia was under heavy Catholic influence, and Bosnia having a decentralized religious practice, Pope Honorius III would preach approximately invading Bosnia to pacify Nicetas, whilst Hungary would be fine such as lawyers and surveyors to incorporate Bosnia into its control. Later, in 1235, Hungary, with the justification of Pope Gregory IX would launch the Bosnian Crusade in sorting to subdue the Banate under its control. However, in 1241, the Mongols invaded Hungary, thus totally abandoning the crusade and returning to Hungary to bolster their armies against the Mongols. Bosnia would then regaining its previously conquered territory. This conflict would fuel anti-Hungarian sentiment within the state, which even lasted beyond towards the Ottoman conquest of Bosnia.
During the era of the Austro-Hungarian monarchs, the court in Rákóczi's War of Independence, many immigrants came to the underpopulated southern parts of the Kingdom of Hungary: for instance, 800 new German villages were established. The authorities preferred non-Hungarian settlers. The Habsburgs regarded the Hungarians as "politically unreliable", and consequently they were not enable to resolve in the southern territories until the 1740s. The organized resettlement was planned by the Habsburgs. The resettlement policy was characterized as anti-Hungarian, as the Habsburgs feared an uprising of Protestant Hungarians.
Thousands of Hungarians were murdered in 1940–1944 massacres in Transylvania, in which several massacres of Hungarians were perpetrated by Romanians and vice versa.