This paper explores how the personal trauma of Sylvia Plath, as manifested in her poem “Daddy," spiraled into a national one, shedding light on her tumultuous relationship with her father, mother, husband, and the Nazis. It also examines the intersection between trauma and memory against the backdrop of psychological theories expounded in the works of Sigmund Freud, Cathy Caruth, and Pierre Nora. Freud wrote extensively about trauma in Beyond the Pleasure Principle (1961); Caruth discussed the theory of trauma in her book Unclaimed Experience: Trauma, Narrative, and History (1996). Nora elaborated on how memory is associated with the sites of memories in his book Les Lieux de Mémoire (Sites of Memory) (1996). The paper attempts to find answers to the following questions: how do trauma and memory stand at crossroads? What is the outcome of this junction? Where are the sites of memory in her poem? Why are they so significant? How does this intersection prove the national trauma? Furthermore, the paper examines the poetic techniques in “Daddy" and investigates how they are used to emphasize the poet's sense of trauma and to guide readers to the sites of memory.