The ancestor cult was a common feature of pharaonic society, aiming to provide social cohesion to extended families as well as close intermediaries with the netherworld. As active members of their respective households, ancestors were objects of veneration and care but were also subject to social obligations toward their kin. However, the continuity of such cults was not exempt from threats, from gradual oblivion to destruction of tombs. Furthermore, tensions between individual strategies and customary duties toward one’s kin were another source of instability, especially when officials sought to create their own funerary services and to transfer them to their direct descendants. Such tensions are particularly visible in social sectors close to the king. The assertion of royal authority depended on the elimination of potential sources of political counterweight, and also on the weakening of kin solidarity among members of the elite. As such, the promotion of the cult of royal ancestors, granting individual rewards to selected members of the court and developing personal contact with gods, was part of this strategy. In other cases, “cultural ancestors” provided prestigious links with golden ages of the past, for instance when authorship of sapiential texts was attributed to famous officials of the past or when scribes wrote graffiti in their tombs. Finally, ancestors and ancestral memories were also invented and manipulated for ideological purposes, such as providing legitimacy in periods of political division or prestigious links with the royal palace and the values it promoted. Ancestor worship thus appears as an active, multifaceted social activity, operating at different levels (individual, domestic/family, community, palace), whose distinctive idiosyncrasies depended on the context in which it operated. Tensions but also mutual influences permeated all these spheres, thus making ancestor cults a dynamic manifestation of social values, political practices, and religious beliefs in pharaonic Egypt.