Lowder is a surname. Notable people with the surname include:
Arthur Lowder, English footballer Bobby Lowder, American banking executive Charles Lowder (1820–1880), English Anglican priest Caroline Lowder Downing (alive in 1912), British suffragette, sister of Edith Downing James Lowder, American writer John Lowder, English architect and surveyor Kyle Lowder, American actor Rhett Lowder (born 2002), American baseball player Rose Lowder (born 1941), filmmaker