This chapter explores late antique wall painting, with special emphasis on its stylistic transformation, evolving iconography and the challenges of preservation and interpretation. It traces the shift from illusionistic Roman painting to the more abstract, linear styles that characterised Late Antiquity. A central argument is that late antique wall painting represents not a decline in artistic quality but rather an adaptive response to new cultural, religious and spatial demands. The chapter examines the rise of Liniendekoration (linear decoration), a geometric style that became dominant in funerary contexts, particularly in Roman catacombs, Egyptian monasteries and Mediterranean hypogea. It also explores the coexistence of early Christian imagery with traditional pagan motifs, emphasising continuity rather than abrupt change. In analysing these shifts, the chapter highlights how late antique painters simplified classical techniques in response to changing workshop practices, economic factors and environmental constraints. It also addresses key methodological challenges, including dating wall paintings, identifying regional styles and assessing the influence of early Christian and Jewish artistic traditions. This study stresses the crucial role of wall painting in Late Antiquity as a medium for shaping religious and social identities, demonstrating its artistic innovation and cultural significance.