The Stage 43 Theatrical Society is a community theatre company in the Tri-Cities area of British Columbia.

[3][4] The company performs approximately three to four major productions per season, regularly featuring comedies, mysteries, and dramas.

Stage 43 would promote their partner organization’s cause and donate to them partial proceeds from tickets sold for the productions.

The partner organizations have included Tri-City Transitions Society, Act 2 Child and Family Services, Honour House, and Kwikwetlem First Nation.

[8][9] The theatre company's past productions have included Woman in Mind (2013), Dearly Departed (2013), Mama Won't Fly (2014), Steel Magnolias (2015), Secrets of a Soccer Mom (2015), M*A*S*H (2018), One Flew Over the Cuckoo’s Nest (2019), The Lion in Winter (2020), and Calendar Girls (2023).