Louis Michel Thibault (28 September 1750 – 15 November 1815), was a French-born architect and engineer who designed numerous buildings in the Cape Colony.

In August 1786 he was chosen to direct the School of Cadets started by the Governor; his duties included being Professor of Mathematics and Military Science.

Before and during the British occupation of the Cape, Thibault was obliged to carry out orders from Colonels de Lille and Gordon, which as an accomplished military strategist, he knew to be unsound.

Major-General James Henry Craig, who was acting governor at the Cape from 1795 to 1797, discovered that Thibault was compiling a map of the Colony.

When Sir George Yonge, 5th Bt (1731–1812) replaced Dundas as Governor, he appointed Thibault as architect of military works under his aide-de-camp.

Cape under British occupation 1806 onwards Despite Thibault's having served under General JW Janssens in the field, Sir David Baird who had become Acting Governor, reappointed him Inspector of Public Buildings.

In 1811 a special commission was appointed to determine the extent of land around Cape Town which was not in private hands and therefore regarded as "disposable" by the Government.

His health rapidly deteriorated during this time and he died on 15 November 1815 of pneumonia, believed by his widow to have been brought on by his working in the cold and wet.

Except for Anreith, who was a confirmed bachelor and lived in a modest house in Bloem Street, the others helped each other out with modifications and additions to their respective homes.