Georges Lambert Casimir Nagelmackers (25 June 1845 – 10 August 1905) was a Belgian civil engineer and businessman, famous for founding the Compagnie Internationale des Wagons-Lits and creating the Orient Express.

Born into a family of bankers with interests in railways and close links to the court of King Leopold II of Belgium, Georges Nagelmackers trained as a civil engineer.

When his feelings were not reciprocated, his family encouraged him to travel to the United States of America to help him recover and also further his professional studies.

After a proposal to George Pullman to collaborate on developing the European market was rebuffed, Nagelmackers returned to Europe.

[5] In June 1900, Nagelmackers won the four-in-hand (mail coach) driving event during the International Horse Show in Paris.