The Key That Should Not Be Handed On (Russian: Ключ без права передачи, romanized: Klyuch bez prava peredachi) is a 1976 Soviet romantic drama film directed by Dinara Asanova.

The film tells the story of a young, progressive teacher adored by her students who suddenly faces scrutiny when her candid critiques of colleagues and education norms spark a controversy, prompting the principled new school director, a former military officer, to navigate the conflict and uncover deeper truths about authority and idealism.