Syed Saddiq bin Syed Abdul Rahman (Jawi: سيد صادق بن سيد عبد الرحمن; born 6 December 1992) is a Malaysian politician who has served as the Member of Parliament (MP) for Muar since May 2018. In 2023, he was convicted of criminal breach of trust and money laundering.

He served as the Minister of Youth and Sports in the Pakatan Harapan (PH) administration under former Prime Minister Mahathir Mohamad from July 2018 to the collapse of the PH administration in February 2020, thus making him the youngest federal minister in Malaysian history. He is a founding member of the Malaysian United Democratic Alliance (MUDA) and has served as 1st President of MUDA since September 2020 until November 2023. He was also a founding member of the Malaysian United Indigenous Party (BERSATU), a former component party of the PH coalition and served as 1st Youth Chief of BERSATU from the founding in September 2016 to his removal from the party in May 2020. Although he is presently the sole MUDA MP, his conviction and sentencing to imprisonment exceeds 1 year, which means he is liable for automatic disqualification as a MP for Muar.

In 2021, he was charged with several counts of corruption, including criminal breach of trust, misappropriation of funds, and money laundering. On 28 October 2022, he has been ordered by the High Court to enter his defence after the prosecution showed that there was enough evidence against him to prove that he probably committed the crime. On 9 November 2023, Syed Saddiq was convicted by the High Court of all the corruption charges, sentenced to 7 years' imprisonment, a RM 10 million fine and two strokes of the cane.