罗汉柏（学名：Thujopsis dolabrata）是柏科罗汉柏属的植物。分布在日本以及中国大陆的武汉、井冈山、福州、上海、南京、青岛、庐山、杭州等地，目前已由人工引种栽培。

罗汉柏为常绿乔木，长着鳞叶的小枝干扁平，排成一个平面，上下两面异形，下面有白粉带。鳞叶呈交叉对生，侧面叶片则呈船形，覆盖在中央叶片的边缘，前端向内微微弯曲。该树种雌雄同株，球花单生，位于短枝的顶端，其中雄球花为椭圆形，有雄蕊6-8对，交叉对生；雌蕊则有4-6对珠鳞，仅中间两对腹部生3-5枚胚珠。

Thujopsis (pronounced /θjuːˈdʒɒpsᵻs/) is a conifer in the cypress family (Cupressaceae), the sole member of the genus being Thujopsis dolabrata. It is endemic to Japan, where it is named asunaro (あすなろ). It is similar to the closely related genus Thuja (Arborvitae), differing in the broader, thicker leaves and thick cones. It is also called hiba, false arborvitae, or hiba arborvitae.