Weatherwax is the name of:
Granny Weatherwax, a character from Terry Pratchett's Discworld series
Galder Weatherwax, a character in Terry Pratchett's novel The Light Fantastic
Paul Weatherwax, (1900–1960), American cutter
Seema Aissen Weatherwax (1905–2006), a Ukrainian political activist and photographer
Frank (1902–1991) and Rudd Weatherwax (1907 – 1985), American actors and animal trainers
Ken Weatherwax (1955–2014), American actor