| Honorific Prefix: | Major General |
| Hendrik Gideon Holtzhausen | |
| Birth Date: | 1958 |
| Birth Place: | Wolmaranstad |
| Nickname: | Deon |
| Birth Name: | Gideon |
| Serviceyears: | 19762018 |
| Rank: | Major General |
| Servicenumber: | 74223900PE |
| Unit: | 4 Artillery Regiment |
| Commands: |
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| Battles: | South African Border War |
Deon Holtzhausen was a general officer in the South African Army and general officer commanding the South African Army Artillery Formation. and later the chief of army force structure on the staff on the Chief of the Army.
He joined the SADF in 1976. He was commissioned as an officer and subsequently served as battery commander at 14 Field Regiment, first as the unit Second in Command then taking command as the OC 14 Artillery Regiment. He completed the SA Army Senior Staff Course in 1991. After that he was appointed second-in-command of 10 Artillery Brigade, OC 4 Artillery Regiment. He completed the course in 1998. He was a staff officer in the Army Headquarters in 19982001. Chief of Staff Training Formation during 2001 to 2011. He did a stint as a to the Kingdom of Saudi Arabia from February 2011 until January 2012. He was promoted to brigadier general on 1 November 2011 and appointed as general-officer-commanding SA Army Artillery Formation on 1 February 2012.[1]
He was subsequently promoted to major general and appointed as the Chief llDirector: Army Force Structures in January 2016. He retired on 28 February 2018.