Guan ware is the Chinese ceramic ware known for a crackled glaze and production for the Southern Song court.
The name guan means “official” or “official’s,” reflecting its association with court kilns. Southern Song Guan ware was produced after the Song court moved south following the loss of northern territory. Its thick-bodied vessels often have bluish, grayish, or greenish glazes marked by deliberate crackle patterns.
The crackle was not necessarily considered a flaw. Instead, it became part of the visual character of the ware, with networks of lines sometimes described through specialized collector terms.
Guan ware is often confused with Ru ware because both are prestigious Song ceramics with subdued blue-green glazes. Ru ware is associated mainly with the Northern Song, while Guan ware is strongly connected with the Southern Song court.