| Alexander Heinrich Gebhard von Zastrow | |
| Birth Date: | 20 August 1768 |
| Rank: | Colonel |
| Commands: | 6th Infantry Brigade |
| Battles: |
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Colonel Alexander Heinrich Gebhard von Zastrow (20 August 1768 in Kolpin – 23 June 1815 in Namur) was a Prussian officer during the Napoleonic Wars.
Von Zastrow was mortally wounded during the storming of Namure on 20 June 1815 leading the Prussian 6th Brigade in an attack on the French rearguard.
Von Zastrow was married to Mathilde von Blankenstein (1777–1868). They had a notable son: