Hilary Erhard Duff (dhashay Sebteembar 28, 1987) waa atariisho Mareykan ah, heesaa, iyo haweeney ganacsato ah. Waxay bilawday xirfadeeda jilitaanka iyadoo da 'yar waxayna si dhakhso ah ugu calaamadisay sanam da'yar oo ah doorka hogaanka ee taxanaha telefishanka, Lizzie McGuire iyo filimka ku salaysan taxanaha, The Lizzie McGuire Movie (2003).