Bhartruhari Mahtab (born 8 September 1957) is an Indian politician from Odisha.

Ahead of the 2024 elections, he quit BJD and joined the Bharatiya Janata Party.

[4][5] Mahtab is the son of late Harekrushna Mahatab,[6] who served two times as the Chief Minister of Odisha.

[7] Mahtab was a member of the Biju Janata Dal (BJD) political party, and resigned from the BJD to join the Bharatiya Janata Party (BJP) on 28 March 2024 before the Lok Sabha elections.

[11][12] He was appointed as the pro-tem speaker of the 18th Lok Sabha on 20 June 2024 by President Droupadi Murmu under the Article 95(1) of the Constitution of India, with the office coming into effect from the first day of the sitting of the 18th Lok Sabha i.e. 24 June 2024 and served till 24 June 2024 until Om Birla was elected as the Speaker of the Lok Sabha on the same day through voice-voting system.