Dyana Sofya Mohd Daud (born 29 December 1987) is a Malaysian lawyer and politician. She is the former political secretary to Democratic Action Party (DAP) veteran leader and Member of Parliament Lim Kit Siang. Dyana is also a columnist for The Malay Mail Online and Sinar Harian, a national Malay-language daily. She has also written a book called Di Sini Bermula (An Earthly Beginning) which contains her compilation of her articles written for The Malay Mail Online. Following her return from the UK in 2016, Dyana became a partner in Ayub & Co, a legal firm based in Shah Alam, Selangor.