Hans-Joachim Mack (30 March 1928 – 6 April 2008) was a German general of the Bundeswehr and Deputy Supreme Allied Commander Europe (DSACEUR) from 1984 to 1987.

Mack was born in Bischofsburg, East Prussia, Weimar Germany (today Biskupiec, Poland).

He attended his General Staff Training Course at the Führungsakademie der Bundeswehr in 1962 – 1964 and served in several position in the Panzertroops.

As a Brigadier-General he commanded the Armoured Corps Training Centre (Kampftruppenschule 2) and the Fachschule des Heeres für Erziehung from 1975 to 1978.

Panzergrenadierdivision and served at NATO's Supreme Headquarters Allied Powers Europe until 1983.