Is there a statue of Hungarian Prime Minister Viktor Orban in the Buda Castle, in Budapest? No, that's not true: The statue was made at a time when Orban was a young child, and symbolizes literature, in a series of eight allegorical statues.
The claim appeared in a TikTok video (archived here) posted on February 10, 2024, under the title, translated from Hungarian into English by Lead Stories staff:
The Viktor Orban statue in the Buda castle.
This is what the post looked like on TikTok at the time of writing:
(Source: TikTok screenshot taken on Wed Feb 14 15:20:26 2024 UTC)
The statue shown in the above video can be found on the western facade (screenshot below) of the National Gallery (archived here) building above the Hunyadi Garden. According to the 2008 yearbook (archived here) of the National Gallery, the eight statues on that facade are eight allegorical figures. The one that the video creator attributes to Viktor Orban symbolizes literature.
Also, the statues were made between 1965 and 1968, and Viktor Orban was born in 1963, making it highly unlikely that the statue could be a portrait of him.
(Source: Google Maps screenshot taken on Wed Feb 13 18:14:02 2024 UTC)