Layered clothing is the wearing of multiple garments on top of each other, often for warmth.

Often, clothing combines two adjacent layers, as in the case of warm undergarments that provide both comfort and insulation. Layered clothing usually consists of three layers. They are identified as follows:^{[citation needed]}

In fashion, combining different garments in layers can be used to create a variety of outfits. The wearer can shed layers according to changes in temperature.

In the New Testament, Jesus in Mark's Gospel counsels his apostles to "put on sandals but not to wear two tunics". Commentators find the meaning unclear, discussing whether the apostles should "not put on two coats; that is, at a time; an inner and an outward one, or one at one time, and another at another". Some translations suggest the words refer to a change of clothes; the equivalent texts in Matthew's Gospel and Luke's Gospel are generally treated as referring to extra clothes.