Friction and wear properties of rice husk (RH) ceramics were studied under dry and water lubricated conditions. RH ceramics exhibited superior tribological properties sliding against high carbon bearing steel (SUJ2) and austenitic stainless steel (SUS304) with very low friction coefficients under 0.1. The RH ceramics also showed very low specific wear rate values under 108 sq mm/N irrespective of counterpart material and lubrication condition. The surface analyses of worn surfaces of ball specimens suggested that the low friction and wear properties of RH ceramics are closely related with formation of a transferred film of amorphous silica on worn surfaces of a counterpart material. This is an abstract of a paper presented at the World Tribology Congress (Kyoto, Japan 9/6-11/2009).