Joanna Wason is a Cornish potter. She assisted Janet Leach at the Leach Pottery, St Ives until her death and continued at the Leach Pottery until its temporary closure in 2006. She now works from her own studio near St Just.

Joanna makes stoneware studio pieces in the Leach tradition and fires them in a gas kiln.

Her husband, Jason Wason, is also a potter.