Marius Borgeaud (French pronunciation: [maʁjys bɔʁʒo]; 21 September 1861 – 16 July 1924) was a Swiss Post-Impressionist painter.

The Swiss art colony there was healthy; some of its famous members were Félix Vallotton, Théophile Alexandre Steinlen, Eugène Grasset, Ernest Bieler, and René Auberjonois.

Beginning in 1904 or 1905, he spent several summers painting with Picabia at Moret-sur-Loing (Seine-et-Marne) with brothers Ludovic Rodo Pissarro and Georges Manzana-Pissarro.

This area attracted artists working in Paris regularly since the nineteenth century because of the tradition, low cost, picturesque geography, and variable weather conditions.

It is in this locality he created two of his most famous series, one in the town hall and the other in the corner drugstore, both which earned him great success in the Paris salon of Independents.

He preferred anonymous places like the station and always painted more private interiors, while keeping a special affection for inn scenes.