Jessica Angela O’Neill (b. 1999, Kingston, London) is a British-Polish environmental artist whose practice examines the material, emotional, and sensory consequences of human impact on marine ecosystems. Working through research-led material inquiry, her work explores how ecological degradation is embodied, witnessed, and made tangible through sculpture, painting, alternative photographic processes, and material installation.

Her ongoing body of work, Calamities: Plastic & Fauna, investigates plastic pollution as both material artefact and ecological contaminant, using the human body as a proxy to examine bodily vulnerability, environmental collapse, and responsibility. O’Neill’s work is conceived as spatial and multisensory encounter, resisting passive visual consumption and emphasising material presence, texture, and scale.

O’Neill has exhibited internationally at Somerset House for Photo London (2021, 2024), the United Nations Headquarters, New York (2023), and Fotografiska Shanghai (2024). Her work has also been presented through Earth Partner (formerly CreateCOP26). She currently lives and works in Sydney, Australia, where proximity to the Pacific coastline, rich marine biodiversity, and access to leading marine scientists and research communities inform her ongoing investigations into marine ecologies and emerging sculptural and painted works.