The Hungarian Gold Train was the German-operated train during World War II that carried stolen valuables, mostly Hungarian Jewish persons' property, from Hungary towards Berlin in 1945. After American forces seized the train in Austria, almost none of the valuables were returned to Hungary, their rightful owners, or their surviving family members.
With the Soviet Army about 100 miles away from Hungary, on March 7, 1944, Adolf Hitler launched Operation Margarethe—the invasion of Hungary. The Arrow Cross Party – Hungary's fascist government, led by Ferenc Szálasi – collaborated with their German occupiers in forcing the estimated 800,000 Jewish citizens of Hungary to hand over all of their valuables to government officials. This included gems, gold jewelry, wedding rings, and anything else considered to be of high monetary value. The confiscated property was placed into individual bags and boxes which identified the owners, and receipts were issued. The majority of the Jews were shipped to concentration camps, particularly Auschwitz-Birkenau, most were murdered. The Hungarian authorities re-sorted all the confiscated valuables into content categories. By that time it was all but impossible to identify proper ownership of any of the valuables.
In late 1944, the Soviet Army was advancing on the Hungarian capital of Budapest. A government official appointed by the Schutzstaffel (SS), Árpád Toldi, concocted a plan to evacuate much of the Jewish loot out of Hungary. Toldi ordered large amounts of the valuables onto a 42-car freight train that was to head for Germany.
According to various reports about the train, the contents included gold, gold jewelry, gems, diamonds, pearls, watches, about 200 paintings, Persian and Oriental rugs, silverware, chinaware, furniture, fine clothing, linens, porcelains, cameras, stamp-collections and currency (mostly US dollars and Swiss francs). Jewish organizations and the Hungarian government estimated the total value of the train's contents at $350 million in 1945 or almost $4 billion in 2007 adjusted for inflation. Other estimates of the contents' 1945 worth are from $50 million to $120 million or $570 million to $1.7 billion in 2007 adjusted for inflation.