Sigcawu is a South African surname that may refer to
Sigcawu ka Sarili (died 1902), South African Royal Daliza Sigcawu, South African royalty son of Sigcawu Salukaphathwa Gwebi'nkumbi Sigcawu (died 1921), South African royal and son of Sigcawu Mpisekhaya Ngangomhlaba Sigcawu (died 1933), South African royalty and grandson of Sigcawu Bungeni Zwelidumile Sigcawu (1906–1965), South African Xhosa King and grandson of Sigcawu Xolilizwe Mzikayise Sigcawu (1926–2005), South African Xhosa King and descendant of Sigcawu Zwelonke Sigcawu (1968–2019), South African Xhosa King and descendant of Sigcawu Ahlangene Sigcawu (born 1970), South African Xhosa King and descendant of Sigcawu