Jean Far Eustache de Saint-Far (1746 - 1822) was a French urbanist and architect. He attended the École royale des Ponts et chaussées, of which Jean-Rodolphe Perronet was the director. He spent a few years in the Royal Corps of Engineers before becoming the architect of the hôpitaux civils. He was in charge of rebuilding Mayence following the siege of Mayence in 1793. Of all of the buildings he envisioned, only one was built, on the northwest side of the Place Gutenberg. This building, built in 1810, is very much in the style of the buildings along the Rue de Rivoli in Paris.