Mto Lumi (pia: Kawimbe) ni mmojawapo kati ya mito ya Zambia, tawimto la mto Saisi ambao tena ni tawimto la mto Momba unaotiririka upande wa kusini magharibi na kuishia katika ziwa Rukwa. Orodha ya mito ya Zambia Mito mirefu ya Afrika (1992) A Directory of African wetlands. IUCN, 251. ISBN 978-2-88032-949-5. Retrieved on 31 March 2012.  Royal Geographical Society (Great Britain) (1880). Proceedings of the Royal Geographical Society and monthly record of geography. Edward Stanford, 763. Retrieved on 31 March 2012.  Geonames.org