Alejandro Sieveking Campano (5 September 1934 – 5 March 2020) was a Chilean playwright, theatre director and actor. He was one of the founders of the "Teatro del Ángel" (Angel Theatre Company) in Chile and Costa Rica. In 2017, he was awarded the National Prize for Performing and Audiovisual Arts. His theatre credits include "Mi hermano Cristián" (1957), "Ánimas de día claro" (1962), "La remolienda" (1965), "Tres tristes tigres" (1967) and "Ingenuas palomas" (1989).