一溴化碘是一种卤素互化物，化学式为IBr。它是暗黑色晶体，有刺激性气味，可溶于水、乙醇、乙醚。它被用作碘化试剂。

它可由溴单质与碘单质直接反应制备，需要将两者在稀有气体保护下长时间加热：

Iodine monobromide is an interhalogen compound with the chemical symbol IBr. It is a dark red solid that melts near room temperature. Like iodine monochloride, IBr is used in some types of iodometry. It serves as a source of I.