Studies investigating diverse phenomena as life story development, the reminiscence bump, emotional and important memories, and future expectations across different ages, as well as experimental and cross-cultural studies, provide converging evidence that cultural life scripts are decisive for individuals to organize autobiographical memories and future thoughts, to draft a meaningful life story, and to navigate their personal future within one’s culture. Recently, researchers have identified cultural life scripts as a type of master narrative (McLean & Syed, 2016), but both autobiographical memory and narrative identity research have overlooked the potential of conceptualizing cultural life scripts as master narratives. In this chapter, we conceptualize cultural life scripts as master narratives, possessing the five defining features of master narratives – utility, ubiquity, invisibility, rigidity, and compulsory nature. Based on the background of the substantial body of research, we propose that conceptualizing cultural life scripts as master narratives can enrich and inspire research on narrative identity approach and autobiographical memory.