Hanna Olava Winsnes (née Strøm; 29 August 1789 – 19 October 1872) was a Norwegian poet, novelist and cookbook writer.

She was the daughter of Jens Henrich Strøm (1729–1809) and Karen Tyrholm Plathe (1755–1805).

She was married to parish priest and member of Parliament, Paul Winsnes (1794–1889).

Her first publication was Grevens Datter from 1841, published under the pseudonym "Hugo Schwarz".

She is particularly remembered for her cookbook, Lærebog i de forskjellige Grene af Huusholdningen (Guide to the Various Branches of Housekeeping) from 1845, which also included themes such as livestock farming, butchering, baking, boiling of soap, and candlemoulding.