Sainte-Osmane (French pronunciation: [sɛ̃t ɔsman]) is a former commune in the Sarthe department in the region of Pays de la Loire in north-western France.

On 1 January 2019, it was merged into the new commune Val-d'Étangson.

[2] The 17th-century French Benedictine Ambroise Janvier (1613–1682) was born in the village.

The commune is named after Saint Osmanna, who hermitage was said to be there, afterwards the site of a church.

This Sarthe geographical article is a stub.