油楠（学名：Sindora glabra），又名蚌壳树（海南），是豆科油楠属的植物。分布于中国大陆的海南等地，多生长于山地的混交林内，目前尚未由人工引种栽培。

Sindora glabra (Chinese:油楠; pinyin:Yóunán) is a tree of the Fabaceae (or Leguminosae) family endemic to the People's Republic of China that grows in the provinces of Hainan, Fujian, Guangdong and Yunnan. The species is under second-class national protection in China.