氢硫化铵，又名硫化氢铵或硫氢化铵，是一种无机化合物，化学式为NH₄HS。氢硫化铵可由硫化氢通入浓氨水至饱和制得。

氢硫化铵化学性质不稳定，易分解。

Ammonium hydrosulfide is the chemical compound with the formula (NH₄)SH. It is the salt derived from the ammonium cation and the hydrosulfide anion. The salt exists as colourless, water-soluble, micaceous crystals. On Earth the compound is encountered mainly as a solution, not as the solid, but NH₄SH ice is believed to be a substantial component of the cloud decks of the gas-giant planets Jupiter and Saturn, with sulfur produced by its photolysis responsible for the color of some of those planets' clouds. It can be generated by mixing hydrogen sulfide and ammonia.