硝酸钡是钡的硝酸盐，分子式为Ba(NO₃)₂。硝酸钡室温下为白色固体，可溶于水。和其他可溶的钡化合物一样，硝酸钡有毒，使用时必须注意。

• 巴拉托是一种密度较大的炸药，由硝酸钡、TNT和粘合剂组成。
• 由铝粉和硝酸钡混合得到的闪光粉具有爆炸性。
• 硝酸钡与铝热剂混合可得到TH3型铝热剂，用于手榴弹中（铝热手榴弹）。
• 硝酸钡也被用于氧化钡的制取、真空管工业及制造绿色焰火。

Barium nitrate with chemical formula Ba(NO₃)₂ is a salt composed of barium and the nitrate ion.

Barium nitrate exists as a white solid at room temperature. It is soluble in water, and like other soluble barium compounds, is toxic. It occurs naturally as the very rare mineral nitrobarite. Barium nitrate's properties make it suitable for use in various military applications, including thermite grenades and incendiary ammunition.