The International Bazaar is an independent and voluntary charitable organisation which started in the early 1960s as a series of small bazaars. One of the founding members is considered to be the British community of Luxembourg. In December 1960, the English Speaking Protestant Church Community (ESPCC) held a sale to raise funds for both the church and for charity. The event raised LUF 10,000 (approx Euro 250) with several future members of the Committee of the International Bazaar attending.

In 1961 and 1962, the event was held under the joint patronage of the American and British Ambassadors to Luxembourg, staffed by volunteers. In 1963 under the leadership of the ESPCC, eight countries - Belgium, France, Germany, Italy the Netherlands, Sweden, the United States and Great Britain - got together to raise money for charity and so the idea of the International Bazaar was born.

Since then the International Bazaar has gone from strength to strength, obtaining a charitable status (asbl) and in 1967 secured the patronage of Her Royal Highness Grand Duchess Joséphine-Charlotte of Luxembourg, the mother of the current Grand Duke Henri. The current patron, Her Royal Highness The Grand Duchess of Luxembourg Maria-Teresa, frequently visits the British Stand to purchase goodies.