Andrija Ljudevit Adamić (Italian: Andrea Lodovico Adamich; 29 November 1766 – 31 October 1828) was a Croatian trader from the City of Fiume (Croatian: Rijeka), builder, supporter of economical and cultural development.

Adamich was born into a wealthy Jewish family of Simon Adamić, tobacco merchant and large estates owner.

After the Napoleonic Wars, Fiume harbour was blocked, and the city was upon the brink of starvation when the English and French navies left.

Adamich managed to revive the city's economy, and allowed it to prosper and evolve fully in the age of Industrial Revolution.

The Formula One racing driver Andrea de Adamich is a distant descendant.