Mamoon Rashid Sheikh (Urdu: مامون رشید شیخ; born 19 March 1958) is a Pakistani jurist currently serving as Chairman of the Competition Appellate Tribunal since 17 July 2020.

[1] He served as the 49th Chief Justice of the Lahore High Court from 1 January 2020 till 18 March 2020.

He also dealt with arbitration matters and cases involving carriage by air, land and sea.

He has been the Inspection Judge for the Districts of Mianwali, Khanewal, Sahiwal, Multan, Rawalpindi, Faisalabad and Lahore.

He represented the Lahore High Court at the Pakistan Independence Day Celebrations, held at Oslo, Norway, in 2016.

He was part of a Lahore High Court, delegation, which visited the United Kingdom, in 2017, to explore, identify and share issues/experiences in respect of judicial reforms and case flow management, etc.