博埃西略（西班牙语：Boecillo），是西班牙卡斯蒂利亚-莱昂巴利亚多利德省的一个市镇。总面积24平方公里，总人口1852人（2001年），人口密度77人/平方公里。

Boecillo is a municipality located in the province of Valladolid, Castile and León, Spain. According to the 2009 census (INE), the municipality has a population of 3324 inhabitants.

It has its own Casino, opened in 1986. It is located in the Palace of Condes de Gamazo, neoclassical building of the late nineteenth century, and was the residence of Germán Gamazo.