Serra de d'Esparreguera or Serra Esparreguera (Spanish: Sierra de Esparraguera, although the spellings Sierra de Espaneguera or Sierra Espaneguera are common in many maps) is an over 17 km (11 mi) long mountain range in the Alt Maestrat comarca, Valencian Community, Spain.

This mountain chain rises abruptly from a plain and looks quite impressive from certain angles. It extends in a roughly SW-NE direction between Atzeneta del Maestrat and Albocàsser. Its highest point is 1087 m high Esparreguera; another important summit is Morral Blanc (1060 m). These mountains are frequently covered in snow in the winter.

• Culla
• Mountains of the Valencian Community

• El País Valencià poble a poble; comarca a comarca - Alt Maestrat
• La Torre d'En Besora tourism