ILASS-AMERICAS 2023 is the 33rd Annual Conference on Liquid Atomization and Spray Systems, North and South America. The focus of the conference is on the advances in the theoretical and computational modeling of the break-up process of a liquid, and its applications in diverse fields like combustion systems, agricultural sprays and industrial sprays. The Conference will include: Keynote presentations involving works done by eminent people on the area of liquid atomization and sprays. Exhibits of the latest computational, instrumentation and hardware work done by the industries. Technical meetings for the participants to get involved in discussions related to their area of interest. Sessions which will include a collection of papers/presentations on topics of current interest.