The 8th Workshop on Symbolic Data Analysis, SDA 2022, will take place in Caserta, Italy, from September 7th to 8th, 2022, locally organized by the Department of Mathematics and Physics of the University of Campania “L. Vanvitelli”. The SDA 2022 Workshop continues to follow the spirit of the previous editions held in Vienna, Namur, Madrid, Taipei, Orleans, Ljubljana, and Viana do Castelo, respectively, and aims at being a place where the symbolic community can share research results and experiences, encouraging cooperation between participants.  This edition aims at doing a step forward in sharing experience with other scientific communities facing the problem of the statistical treatment of complex or unconventional data. The workshop will include oral presentations showing recent developments, from a theoretical or methodological point of view, practical applications, and new software tools.