Jacobsbaai is a settlement in West Coast District Municipality in the Western Cape province of South Africa.

The name is said to have come from the Frenchman Jacques Titius.

He was a colonial trader in the West Coast.

Tietiesbaai is also named after him, and Jacobsbaai has a street called Titius.

Another explanation for the name is that the English king entrusted the piece of land to a local known as ‘Jacob', a chief of the Gonneman Hottentots.