| Honorific Prefix: | Brigadier |
| Hendrik J. Greyvenstein | |
| Birth Name: | Hendrik Jacobus Greyvenstein[1] |
| Birth Date: | 1916 7, df=y |
| Birth Place: | Pretoria, South Africa |
| Death Place: | Pretoria, South Africa |
| Nickname: | Greyvie |
| Rank: | Brigadier |
| Unit: | School of Artillery |
| Commands: |
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| Battles: | World War II |
| Spouse: | Eileen Dulcie de Vaal (19222007) |
| Laterwork: | Farmer |
Brigadier Hendrik Jacobus Greyvenstein (July 11, 1916 – March 15, 1986) was a senior officer in the South African Army from the artillery. He was educated at the University of Pretoria and took part in the Second World War as an artilleryman. In 1944, he was seconded to the Royal Artillery and served as an Adjutant at the Artillery School, officer instructor, and Battery Commander of the 10 Field Battery, 4 Field Regiment.
Greyvenstein graduated from the British Overseas School in Egypt during the Second World War and completed the SA Military College Staff course. He served as Chief Instructor Gunnery during the fifties, Battery Commander at 1 South African Infantry Battalion in Oudtshoorn. He commanded 4 Field Regiment and the School of Artillery. before being appointed as the Director of Artillery. Brigadier Greyvenstein served at General Headquarters, Chief of Staff section before he retired in the mid seventies.
Greyvenstein died in Pretoria on 15 March 1986, at the age of 69.[2]