Llotja ([ˈʎɔdʒə], [ˈʎɔdʒa], plural llotjes); in Aragonese: loncha; in Spanish: lonja, is a Iberian term for a building that, during the Middle Ages, was used for commercial purpose.
Others, in feudal towns, were used for fishing and livestock market.
The existing llotjes from the former Crown of Aragon are:Llotja of Valencia or Llotja de la Seda, civil Gothic monument built between 1482 and 1492, by the mason master Pere Compte. It was declared a World Heritage Site by UNESCO on December 7, 1996.
Llotja of Palma or Sa Llotja, (1420–1452).
Llotja of Barcelona or Llotja del Mar, (1352–1453) (reformed 1774–1802).
Llotja of Perpignan (currently into France) (14th–16th centuries).
Llotja del Cànem in Castellón de la Plana.
Llotja of Castelló d'Empúries (c. 1393).
Llotja of Tortosa (1368–1373).
Loncha of Sos del Rey Católico (15th century).
Llotja of Alcañiz (15th century).
Loncha of Zaragoza (1541–1551).
Casa Consistorial de Tarazona, (1563) formerly was a loncha, the same building become in mid-17th century to be the Town Hall.
Casa de Contratación, also called Casa Lonja de Sevilla, in which centralized all trade of America with Spain from 1580 to 1717, including all types of products.
Lonja de San Felipe or Las gradas de San Felipe, was in Madrid (16th c.), was demolished.
Antigua Lonja in El Puerto de Santa María (18th century).