Sanji Mmasenono Monageng (born 9 August 1950) was a judge of the International Criminal Court (ICC) from 2009 to 2018.

In November 2006, she attended the meeting for The Yogyakarta Principles held in Gadjah Mada University.

[2] In 2009, Monageng was elected a judge of the ICC by the court's Assembly of States Parties.

[3] When Monageng was elected to the ICC in 2009, she was assigned to sit in the Pre-Trial Chamber of the Court.

[7] Monageng is a panel member[8] representing Botswana in the Dispute Resolution Board of the World Trade Organisation On 30 September 2013, Monageng received the Presidential Order of Honor from President Ian Khama.