Maffey is an English-language surname. Notable people with the surname include:
Alan Maffey, 2nd Baron Rugby (1913–1990), English peer Denis Maffey (1922–1995), English footballer John Maffey, 1st Baron Rugby (1877–1969), English civil servant and diplomat John Maffey (MP) (, English politician Penelope Loader Maffey (1910–2005), English socialite
See also Maffei (surname) Maffeis