Sumwalt is a surname derived as a variation of the surname Zumwalt.
People having this surname include:
Barbara Lathan Sumwalt, founder of the Barbara Sumwalt Museum on Useppa IslandCharles L. K. Sumwalt, a Colonel in the 138th Pennsylvania Infantry during the American Civil WarJames Sumwalt, one of the six co-founders of American computer game development company, Human Head StudiosJoshua B. Sumwalt, a partner in the quarrying of the Woodstock Quartz Monzonite depositRobert L. Sumwalt (academic) (born 1895; fl. 1975) at the University of South CarolinaRobert L. Sumwalt (entrepreneur), Jr. (born 1928; fl. 2003), architect, developer, & son of the academicRobert L. Sumwalt (NTSB), III (born c. 1950s), pilot, member of the National Transportation Safety Board, & son of the entrepreneur