Boursin [buʀsɛ~] is a brand of Gournay cheese. It is a soft creamy cheese available in a variety of flavours. Its flavor and texture is somewhat similar to cream cheese.

Boursin cheese was first produced in 1957 by François Boursin in Normandy. Boursin is a trademark – Boursin cheese was at one time produced exclusively in Croisy-sur-Eure, France, by the Boursin company, a subsidiary of Groupe Bel, which purchased Boursin in November 2007 for 400 million euros. The cheese is also produced in the United States for North American distribution by Unilever.

The brand was advertised on UK television using the slogan: "Du Pain, Du Vin, Du Boursin" (Translated: Some bread, some wine, some Boursin)