氢氧化铷（RbOH），一种强碱，较氢氧化钾的碱性强。它由铷离子和氢氧根离子按1：1的物质的量之比构成。

氢氧化铷具强腐蚀性，因此使用时应穿着适当的防护服、手套和安全眼镜。

氢氧化铷是具有强潮解性的灰白色固体，由铷离子和氢氧根离子组成。

氢氧化铷能和空气中的二氧化碳反应，生成碳酸铷和水。

Rubidium hydroxide (RbOH) is a strong basic chemical and alkali that is formed by one rubidium ion and one hydroxide ion.

Rubidium hydroxide does not appear in nature. However it can be obtained by synthesis from rubidium oxide. In addition, rubidium hydroxide is commercially available in form of an aqueous solution from a few suppliers.