Sun Dawen (simplified Chinese: 孙大文; traditional Chinese: 孫大文; pinyin: Sūn Dàwén; Jyutping: Syun1 Daai6 Man6; ), known as Da-Wen Sun, is a Chinese-born professor who studies food engineering at University College Dublin.

He is Editor-in-Chief of Food and Bioprocess Technology – an International Journal (Springer),[9][10] Series Editor of Contemporary Food Engineering book series (CRC Press / Taylor & Francis), former Editor of Journal of Food Engineering (Elsevier), and editorial board member for a number of international journals.

Sun's academic work is in the area of food engineering research and education.

[11][12][13][14][15][16][17] His main research activities include cooling, drying and refrigeration processes and systems, quality and safety of food products, bioprocess simulation and optimisation, and computer vision technology.

He has studied on vacuum cooling of cooked meats, pizza quality inspection by computer vision, and edible films for shelf-life extension of fruit and vegetables.