Mohd Shahar bin Abdullah (Jawi: محمد شاهر بن عبدﷲ; born 6 December 1980) is a Malaysian politician who has served as the Member of Parliament (MP) for Paya Besar since May 2018 and Chairman of the Government Backbenchers Club since March 2024. He served as the Deputy Minister of Finance I in the Barisan Nasional (BN) administration under former prime minister Ismail Sabri Yaakob and former minister Tengku Zafrul Aziz from August 2021 to the collapse of the BN administration in November 2022 and the Deputy Minister of Finance II in the Perikatan Nasional (PN) administration under former prime minister Muhyiddin Yassin and former Minister Tengku Zafrul from March 2020 to the collapse of BN administration in August 2021. He is a member and the Division Chief of Paya Besar of the United Malays National Organisation (UMNO), a component party of the BN coalition.

Shahar contested seat in Paya Besar in 2018 Malaysian general election, defeating candidates from Pakatan Harapan (PH) and Malaysian Islamic Party (PAS).

Shahar was also appointed the Youth Information Chief of UMNO after being elected in 2018.

On 9 March 2020, he was appointed Deputy Minister of Finance II to Muhyiddin cabinet of the PN administration. He also held the position with Abdul Rahim Bakri.

In 2018, he contested for the UMNO Youth Chief position but lost to Asyraf Wajdi Dusuki. In July 2018, he was appointed as UMNO Youth Communication Chief by Asyraf Wajdi. He contested and lost again during the 2023 election.