Angus Alexander Geoffrey Trumble (6 October 1964 – 8 October 2022) was an Australian scholar, art curator, and author. He was the director of the National Portrait Gallery of Australia, a senior research fellow at the National Museum of Australia, a curator at Yale University's Centre for British Art and the Art Gallery of South Australia, and the author of books including A Brief History of the Smile and The Finger: A Handbook.