叠氮化锂是锂的叠氮酸盐，其化学式为LiN₃。它是一种不稳定且有毒的化合物，加热时，分解成氮和锂。

它可以透过叠氮化钠和硝酸锂的复分解反应制备：

NaN₃ + LiNO₃ → LiN₃ + NaNO₃

硫酸锂也可以:

2 NaN₃ + Li₂SO₄ → 2 LiN₃ + Na₂SO₄

Lithium azide is the lithium salt of hydrazoic acid. It is an unstable and toxic compound that decomposes into lithium and nitrogen when heated.