Marie Olive Lembe di Sita (born 29 July 1976) is the former First Lady of the Democratic Republic of the Congo.

She was the long-term girlfriend of Congolese President Joseph Kabila whom she married on 1 June 2006, becoming her country's First Lady.

On 1 June 2006, the head of the Maison Civile, Theo Mugalu, officially announced the wedding of Ms. Lembe di Sita to the President.

[3] The wedding eventually took place on 17 June 2006 at the Presidential residence, in La Gombe, Kinshasa.

[4] As President Kabila is Protestant, and Ms. Lembe di Sita is Catholic, the wedding ceremony was somewhat ecumenical, with both Cardinal Etsou, and Mgr Pierre Marini Bodho - Bishop and President of the Church of Christ in Congo, the umbrella church for most Protestant denominations in Congo - officiating.