Arenas de San Pedro is a municipality in the province of Ávila, in the autonomous community of Castile and León, Spain. According to the 2025 census (INE), it has a population of 6,460 inhabitants.
The town's seal depicts a large castle located in the town and bears the motto "Siempre incendiada y siempre fiel", meaning "always on fire and always faithful". The motto reflects the town's history of having been burned down and pillaged many times.