Angine de Poitrine (French for "angina pectoris") is an experimental rock duo from Saguenay, Quebec, Canada. Formed in 2019, the group consists of two members performing under the pseudonyms Khn de Poitrine (guitar, bass, and microtonal instruments) and Klek de Poitrine (drums). The two musicians have performed together since their teenage years. They first appeared as Angine de Poitrine in 2019, although they did not begin performing regularly under this name until 2023.