The Contemporary Art Society (CAS) is an independent charity that champions the collecting of outstanding contemporary art and craft for UK museum collections. Since its founding in 1910 the organisation has donated over 10,000 works to museums across the UK. From the 1930s the Society also donated works to Commonwealth museums, but since 1989 the focus has remained exclusively on UK institutions.

Contemporary art is the art of today, produced in the second half of the 20th century or in the 21st century. Contemporary artists work in a globally influenced, culturally diverse, and technologically advancing world. Their art is a dynamic combination of materials, methods, concepts, and subjects that continue the challenging of boundaries that was already well underway in the 20th century. Diverse and eclectic, contemporary art as a whole is distinguished by the very lack of a uniform, organising principle, ideology, or "-ism". Contemporary art is part of a cultural dialogue that concerns larger contextual frameworks such as personal and cultural identity, family, community, and nationality.