| Hermanus Steyn | |
| Birth Date: | 15 February 1743 |
| Birth Place: | Bruintjiesrivier, Swellendam, Dutch Cape Colony |
| Death Date: | 1804 (60-61) |
| Death Place: | Jan Harmsgat, Swellendam, Cape Colony |
| Termend: | 4 November 1795 |
| Termstart: | 17 June 1795 |
| Office: | 1st President of the Republic of Swellendam |
| Predecessor: | Office established |
| Successor: | Office abolished |
| Parents: | Hermanus Steyn d'Oude and Martha Potgieter |
| Spouse: | Anna Margaretha Van Staden (m. 1765) |
| Children: | 7 |
| Office2: | Head of Swellendam Home Council |
| Predecessor2: | Hermanus Steyn d'Oude |
| Country: | Swellendam |
| Vicepresident: | Petrus Delport |
| Honorific Prefix: | President |
| Allegiance: | Republic of Swellendam Republic of Graaff-Reinet |
Hermanus Steyn (15 February 1743, Swellendam – 1804, Swellendam) was the President of the Republic of Swellendam. When the rule of the Dutch East India Company fell in 1795 and the Swellendam citizens called their own Republic into existence, he was elected as president. A few months after the arrival of the British, an end was made to this Republic.[1]
He was born and baptized in 1743 near Bruintjies River, which was then the border of the Dutch Cape Colony.[2] He married Anna Margaretha Van Staden in 1765. They had seven children together - three sons and four daughters. He farmed with his father, Hermanus Steyn d'Oude at Bruintjiesfontein near Swellendam until 1773, where he soon commanded respect from his neighbours.[3] His father was elected as part of the home council of Swellendam various times. He was very interested in the Patriot movement at the Cape in the years 1770. In 1773 he moved to the tenant farm De Doornfontein "boven aan de Sondags Rivier onder de Camdeboo" on the then eastern border. In 1789 he returned to Swellendam and settled on the farm Jan Harmansgat. He lived there until he died in 1806. His son Marthinus farmed after him on Jan Harmansgat.[4] Simon Kick, the famous Dutch Painter, was his 3rd great-grandfather on his mother's side, Hendrik Potgieter, the Voortrekker, was his cousin's son, also on his mother's side and Marthinus Prinsloo, the President of the Republic of Graaff-Reinet[5] was his 2nd cousin, also on his mother's side.