碘化铷是一种无机离子化合物，属于碘盐，为一种盐类，其化学式为RbI，是一种白色固体。

碳酸铷和碘化氢反应制得。

Rb₂CO₃ + 2 HI → 2 RbI + CO₂ + H₂O

Rubidium iodide is a salt with a melting point of 642 °C. Its chemical formula is RbI.

Rubidium iodide can be formed from the reaction of rubidium and iodine:

2 Rb + I
2 → 2 RbI