Lake Chrissie (Afrikaans: Chrissiesmeer) is a lake in Msukaligwa Local Municipality, Mpumalanga, South Africa. It is a shallow and large lake, with a maximum depth of about 6 metres (20 ft), 9 kilometres (5.6 mi) long, 3 kilometres (1.9 mi) wide. The lake is named after Christiana Pretorius, daughter of Marthinus Wessel Pretorius, first president of the boer Transvaal Republic. The lake is also informally known as "Matotoland" (meaning "land of frogs") and its swazi name is "Kachibibi" (meaning "big lake"). A famous battle of the Second Boer War was fought by Lake Chrissie on 6 February 1901.