McMaster is a surname. Notable people with the surname include:
Andrew Ross McMaster (1876–1937), Canadian politicianA. T. McMaster (1918-2002), American politicianBill McMaster (born 1930), Australian rules football coach and former playerBob McMaster (1921–2003), Australian rugby union and rugby league footballer, and wrestlerCarolyn McMaster, Canadian film producerCecil McMaster (1900 – unknown), South African Olympic athleteDrew McMaster (born 1959), retired Scottish sprinterElizabeth McMaster (1847–1903), Canadian humanitarianFergus McMaster (1879–1950), Australian businessmanGordon McMaster (1960–1997), Scottish politicianGriffin McMaster (born 1983), Australian football (soccer) playerH. R. McMaster (born 1962), U.S. Army liuetenant generalHarold McMaster (1916–2003), inventor and entrepreneur in the glass industryHenry McMaster (born 1947), the current Governor of South CarolinaJamie McMaster (born 1982), English-Australian football (soccer) playerJames McMaster 19th-century American Catholic newspaper editorJoseph McMaster (1861–1929), English cricketer with an extremely short careerLois McMaster Bujold (born 1949), American authorLuke McMaster (born c. 1970s), American musician of McMaster & JamesQue McMaster, former collegiate track and field coachRhyll McMaster (born 1947), contemporary Australian poet and novelistSam McMaster, the General Manager of the Los Angeles Kings (NHL) from 1994 to 1997Stanley McMaster (1926–1992), Unionist politician and barrister in Northern IrelandSusan McMaster (born 1950), Canadian poet, literary editor, and spoken word performerValentine Munbee McMaster (1834–1872), Irish war-time surgeonWilliam McMaster (1811–1887), wholesaler, Senator and bankerWilliam McMaster (businessman) (1851-1930), industrial executive in QuebecWilliam H. McMaster (1877–1968), the tenth Governor of South Dakota