Ashdon is a village and civil parish in Essex, England. The village is approximately 4 miles (6.4 km) northeast of the nearest town, Saffron Walden. It is on the River Bourn, a tributary to the River Granta, a tributary to the River Cam. The village is close to the Essex/Cambridgeshire county border. According to the 2001 census the population of the parish was 792.
Apart from Ashdon village, the parish also includes Stevington End and Church End.