Joanne Frost (born June 27, 1971) is an English nanny and television personality. She was the central figure of the reality television program Supernanny. She has written three books on childcare and began her work experience in 1989. Since April 2014, she has fronted ITV tabloid show Jo Frost: Family Matters.

She provided the voice of Nanny Nell in the Disney Junior series Jake and the Never Land Pirates. Frost will also narrate the upcoming 2016, Disneynature documentary, Born in China.