A currier is a specialist in the leather processing industry. After the tanning process, the currier applies techniques of dressing, finishing and colouring to the tanned hide to make it strong, flexible and waterproof. The leather is stretched and burnished to produce a uniform thickness and suppleness, and dyeing and other chemical finishes give the leather its desired colour.

After currying, the leather is then ready to pass to the fashioning trades such as saddlery.

Tanning and currying were formerly separate crafts, but the functions of the tannery and curriery have usually becoming integrated in industrial production environments.