Mjellby art museum's collection, is part of Halmstad municipality and consists of various donations. The different donations are: Marta and Anders Nanne collection, Rolf Fredborg collection, Solvig Olson and Viveka Bosson collection, Lotten Bråmå collection, Stiftelsen Halmstadgruppen collection, Stiftelsen Erik Olson collection and Zaida Helena Rådberg and Anders Fredrik Wetterqvist collection.