Kilims (Persian: گلیم gelīm, Azerbaijani: Kilim کیلیم, Turkish: Kilim, Turkmen: Kilim) are flat tapestry-woven carpets or rugs produced from the Balkans to Pakistan. Kilims can be purely decorative or can function as prayer rugs. Modern kilims are popular floor-coverings in Western households.
The term 'kilim' originates from the Persian gelīm (گلیم) where it means 'to spread roughly', perhaps of Mongolian origin. The Turkish name is kilim. Turkish word sometimes used to describe rugs without pile. It more precisely refers to rugs woven in slit tapestry weave made in the traditional rug producing areas of the Middle East.
Like pile carpets, kilim have been produced since ancient times. The explorer Mark Aurel Stein found kilims dating to at least the fourth or fifth century CE in Hotan, China:
Kilims are produced by tightly interweaving the warp and weft strands of the weave to produce a flat surface with no pile. Kilim weaves are tapestry weaves, technically weft-faced plain weaves, that is, the horizontal weft strands are pulled tightly downward so that they hide the vertical warp strands.
When the end of a color boundary is reached, the weft yarn is wound back from the boundary point. Thus, if the boundary of a field is a straight vertical line, a vertical slit forms between the two different color areas where they meet. For this reason, most kilims can be classed as "slit woven" textiles. The slits are beloved by collectors, as they produce very sharp-etched designs, emphasizing the geometry of the weave. Weaving strategies for avoiding slit formation, such as interlocking, produce a more blurred design image.