The concept of the affective archive engages with the dynamic interplay between affect, memory, and archival practices, challenging ideas of archives as neutral, static repositories. Instead, the Affective Archive is a living, embodied phenomenon where affective experiences can be preserved, reactivated, and actualized. The concept distinguishes the relation between archives and affect on three levels: affects and emotions linked to the origin of records (affects in the archive); affects arising from the archive’s structure and organization (affects of the archive); and affects generated by engaging with archival content (affects from the archive). These interconnected layers form a rich network of bodies and affects across time and space that is key to understanding historically informed knowledge production. The chapter traces key approaches from poststructuralist theory, anthropology, and queer studies, and examines recent digital and artistic practices that give rise to “affective witnessing” and “counter-archives.” Especially in contexts of protest, trauma, and political resistance, the affective archive reveals how emotions mobilize memory and challenge hegemonic narratives—transforming archives into dynamic arenas of negotiation over how societies feel about their pasts and imagine their futures.