Dato' Sri Saifuddin bin Abdullah (Jawi: سيف الدين بن عبدالله; born 27 January 1961) is a Malaysian politician who has served as the Member of Parliament (MP) for Indera Mahkota since May 2018.

[1] Saifuddin was educated at Sekolah Kebangsaan Abu Bakar Mentakab (1968–73), Malay College Kuala Kangsar - MCKK (1974–80), obtained BA Honors from University of Malaya (1984), Diploma in Translation from Malaysian Translator Association / Dewan Bahasa dan Pustaka (1985) and followed by the Executive Course at Harvard Business School (1995).

[9] Saifuddin's ministerial career was cut short by the 2013 election, when he lost his parliamentary seat to a Pan-Malaysian Islamic Party (PAS) candidate by 1,070 votes.

[11][12] In 2015, Saifuddin quit UMNO and joined the People's Justice Party (PKR) over disagreements with the government's handling of the 1Malaysia Development Berhad scandal.

[13][14] In the February 2020 political crisis dubbed "Sheraton Move", Saifuddin quit PKR along with deputy president Azmin Ali and 9 other MP's to form an independent parliamentary block.