Karol Szczęsny Hanusz (30 May 1894 – 20 December 1965) was a Polish theatrical, cabaret and silent film actor and singer (baritone).

During World War II, he performed in public (German-directed) revue theaters and sang in cafes.

[3][4][2] He was famously a friend of Eugeniusz Bodo (nowadays speculated to have been a relationship) and Hanka Ordonówna, whose artistic pseudonym came from Hanusz' idea.

[2][1][5] He was murdered in his apartment by a man he picked up while cruising, a fate of many gay men whose lives in Polish People's Republic were relegated to the (often dangerous) underground because of societal homophobia.

[1][2] He was buried in a family grave on Powązki Cemetery, with an epitath "Pieśniarz Warszawy" (The Warsaw's Singer).