Trelew is a city in the province of Chubut, in the Argentine Patagonia, with a population of 93,386. The city has a small commercial centre. The Salon San David is a replica of St David's Cathedral, Pembrokeshire. It is served by the Almirante Marco Andrés Zar Airport.
Trelew's foundation is linked with Welsh settlement in Argentina, the leaders of which were Captain Sir Love Jones-Parry of Madryn and Lewis (Luis) Jones, who acted as spokesmen to deal with the Argentine government at the beginning in the 1860s. The town was named Trelew in honour of Lewis Jones, tre meaning "town" in Welsh and Lew being an apocope for Lewis.