Tardajos is a municipality and town located in the province of Burgos, Castile and León, Spain.

According to the 2014 census (INE), the municipality has a population of 950 inhabitants.

Tardajos received a fuero from Count Pedro González de Lara and Countess Eva in 1127.

It was re-issued with adjustments on three subsequent occasions by either Pedro or Eva, the last being in 1147.

This article about a location in the province of Burgos, Spain is a stub.