Lucia Anna Joyce (26 July 1907, Trieste – 12 December 1982, Northampton) was a professional dancer and the daughter of Irish writer James Joyce and Nora Barnacle.
Once treated by Swiss psychoanalyst Carl Jung, Joyce was diagnosed as schizophrenic in the mid 1930s and institutionalized at the Burghölzli psychiatric clinic in Zurich.
In 1951, Joyce was transferred to St Andrew's Hospital in Northampton, where she remained until her death in 1982.