 This entry begins with a taxonomy of different ways of associating and the related phenomena of interacting and assembling  (§1).  It then elucidates the general apparatus of rights, duties, and freedoms that underpin different associative contexts  (§2)  before homing in on three rights in particular—the right to exclude  (§3),  the right to exit  (§4),  and the right to organizational autonomy  (§5;  White 2013)—distinguishing between the rights of individuals vis-à-vis groups, and the rights of groups qua groups. The entry connects individuals’ associative rights to other rights that contain associative aspects, such as freedom of expression and freedom of religion. The entry discusses groups’ associative rights in relation to kindred, collective, and national freedoms, such as national self-governance and immigration control, exploring how these latter freedoms connect to the wider framework of associative freedom. Examining states’ rights to exclude and self-govern is necessary here since some philosophers invoke a parallel between individuals’ associative freedoms and states’ rights in order to defend comprehensive state rights to exclude. The entry also assesses the importance of associative freedom relative both to competing rights (such as positive rights to inclusion, care, and companionship) and other values (such as equality and state interests).