Westmill is a residential area of Hitchin in Hertfordshire, England. It was originally built as a council housing estate in the 1920s. There is a primary school, Oughton Junior, Infant and Nursery School. It forms part of Oughton ward for local government purposes.
It is close to the Oughtonhead Common, a Local Nature Reserve,[1][2] and Oughtonhead Lane, a geological Site of Special Scientific Interest.[3][4]