Khust (Ukrainian: Хуст, IPA: [xust]; Russian: Хуст; Hungarian: Huszt; German: Chust; Romanian: Hust; Yiddish: חוסט, romanized: Khist) is a city located on the Khustets River in Zakarpattia Oblast, western Ukraine.

The castle was besieged in 1644 by the army of George I Rákóczi, in 1657 by the Polish, and in 1661–62 by the Ottoman and Tartar hordes.

Count Ferenc Rhédey, the ruling prince of Transylvania and high steward of Máramaros County died in the castle on 13 May 1667.

The seriously damaged castle was struck by lightning and burnt down on 3 July 1766; a storm brought down its tower in 1798, it has been in ruins ever since then.

In 1861, Rabbi Moshe Schick, established what was, at that time, the largest yeshiva in the world, with over 800 students.

[citation needed] Until the Treaty of Trianon it belonged to Hungary and was the seat of the Khust district of Máramaros county.

But according to the St.-Germain treaty Czechoslovakia received the city, as part of newly formed Podkarpatsko ("under the Carpathians") region (Subcarpathia).

The next day, 16 March 1939, Hungarian troops invaded Khust and claimed it as part of Hungary.

When the city became part of Hungary in March 1939 again, many Jewish citizens were forced into labor camps.