Anguix is a municipality and town in the province of Burgos, within the autonomous community of Castile and León, Spain. It is located in the northern part of the country, in the region historically known as Old Castile.
The municipality is small, with a recorded population of 136 inhabitants in 2019. As a municipality, it forms part of the local administrative structure of the province of Burgos, alongside the many other towns and villages that make up this largely rural area of Castile and León.