A lyre arm is an element of design in furniture, architecture and the decorative arts, wherein a shape is employed to emulate the geometry of a lyre; the original design of this element is from the Classical Greek period, simply reflecting the stylistic design of the musical instrument. One of the earliest uses extant of the lyre design in the Christian era is a 6th-century AD gravestone with lyre design in double volute form. In a furniture context, the design is often associated with a scrolling effect of the arms of a chair or sofa. The lyre arm design arises in many periods of furniture, including Neoclassical schools and in particular the American Federal Period and the Victorian era. Well known designers who employed this stylistic element include the noted New York City furniture designer Duncan Phyfe.

The term lyre chair is a closely associated design element also originating in motif from the Greek Classical period and appearing often in chair backs starting circa 1700 AD. In the lyre chair, the splat features a pair of single lyre scrolls with bilateral symmetry. This particular splat chair back was a favourite motif employed by the well known English furniture designer Thomas Sheraton. Sometimes a chair of this design is called a lyre back chair.