Comprehending the significance of legacy in end-of-life (EoL) situations helps palliative care professionals enhance person-centered outcomes for those with a life-threatening illness and their families. Our purpose was to conduct a concept analysis of legacy in EoL care. By employing Walker and Avant’s approach, we identified the concept’s defining characteristics. Subsequently, we established the antecedents, consequences, and empirical referents. After conducting a thorough review of titles and abstracts, a total of 30 publications were analyzed. These articles were sourced from three databases (CINAHL, Medline via PubMed, and Scopus) from 2002 to 2023. Our analysis identified several core attributes of legacy: (a) leave behind something of value that transcends death; (b) determine how people want to be remembered; (c) build and bestow across generations; (d) integrate advance care planning through EoL conversations and shared decision-making; and (e) develop strategies of dignity-conserving care. The consequences are related to improvements in spiritual and subjective well-being; coping with inevitable EoL existential issues; decreases in EoL suffering; engendering self-awareness, hope, gratitude, and peace; achieving and maintaining dignity; creating good memories; promoting mutually constructive and transformative relationships; and fostering the adjustment of bereaved people. Nevertheless, further effort is required to implement the key attributes of legacy that form the basis for creating legacy-oriented interventions near the EoL.