Sheikh Sharhan Naser Tonmoy best known as Sheikh Tonmoy is a Bangladesh Awami League politician and a former member of Jatiya Sangsad representing the Bagerhat-2 constituency. He is a grand-nephew of Sheikh Mujibur Rahman, nephew of Sheikh Hasina, and second-cousin of Sajeeb Wazed, Saima Wazed & Tulip Siddiq. He has been missing along with all of his family members since the fall of his aunt Sheikh Hasina's government on 5 August 2024.
Tonmoy's father is Sheikh Helal Uddin, member of parliament for Bagerhat-1 and cousin of Prime Minister Sheikh Hasina. He completed his higher studies in London, United Kingdom.
Tonmoy was elected to Parliament on 30 December 2018 from Bagerhat-2 as a Bangladesh Awami League candidate.
Tonmoy started his career journey with a job at a company in Singapore. Although he was born into a political family and did not become politically active until 2017, he joined the Bangladesh Awami League as a member from Bagerhat Municipal Branch, marking his formal entry into politics.
Tonmoy's term as Member of Parliament ended on 6 August 2024 following the fall of his aunt Sheikh Hasina's government. He was succeeded by Shaikh Monzurul Haque Rahad of the Bangladesh Jamaat-e-Islami in the 2026 general election. This marked the end of Tonmoy's parliamentary career, though he continues to be involved in local and family political activities.