Johanna Greta (Hannie) Mein (Utrecht, 10 July 1933 - Vinkega, 14 February 2003) was a Dutch ceramist.
She attended evening classes at the Gerrit Rietveld Academy in Amsterdam, where she was taught by Theo Dobbelman and Emmy van Deventer.
In 1988 Mein was involved in the establishment of the Foundation Ceramists Northern Netherlands.
In the same year in the Nationaal Vlechtmuseum in Noordwolde held a retrospective of her work.
In 2005 the Hannie Mein Art Prize was instituted, for artists from Ooststellingwerf and Weststellingwerf, which that year was then presented to Guus Hellegers