It is our great pleasure to welcome you to the 35th ACM Symposium on Parallelism in Algorithms and Architectures - SPAA 2023. SPAA aims to develop a deeper understanding of parallel and distributed computing, both in theory and in practice. Topics relevant to SPAA include algorithms, data structures, computational models, complexity theory, architectures, performance engineering, languages, runtime systems, compilers, programming systems, and networking systems. This year, there were 104 submissions to SPAA (100 regular submission and 4 brief announcements). The program committee accepted 37 regular papers and 10 brief announcements.