Baix Penedès is a comarca in Catalonia, Spain. The area has been settled since the times of the Iberians, with ancient ruins remaining in Banyeres at Can Canyís, in the capital el Vendrell at the village of Guàrdies and in Calafell at the villages of Toixoneres and la Ciutadella ("The Citadel").
Baix Penedès has one of the longest-lived traditions of castellers in Catalonia. (Castellers practice the traditional Catalan art/sport of making human pyramids.) The comarcal capital, el Vendrell, has a monument dedicated to castellers.
The most important competitions of Castellers in the comarca occur each year as part of the August festival in honor of the Virgin Mary at Bisbal and on the fourth Sunday of August at L'Arboç, with castellers from all over Catalonia.