The ninth annual Workshop on Integrable Systems will be held on 2-3 December, 2021. This workshop brings together speakers on topics such as integrable systems, special functions, mathematical physics, discrete dynamical systems, and Painlev’e equations. If restrictions allow, the workshop will be held in a hybrid format to accommodate online and in-person participation. Please complete the online registration form at your earliest convenience and there is no registration fee to attend. Zoom links will be sent to all registered participants. Tentative list of Speakers: Reinout Quispel (La Trobe) Vladimir Bazhanov (ANU) Yang Shi (Flinders) Harini Desiraju (MSRI) Emma Carberry (USyd) Holger Dullin (USyd) Ralph Willox (University of Tokyo) John Roberts (UNSW) Peter Van Der Kamp (La Trobe) Wolfgang Schief (UNSW) Sarah Post (University of Hawaii) Website link: https://www.maths.usyd.edu.au/u/integrable/index.html Registration link (also on website): https://forms.office.com/r/xJgm2BmA1P