The 11th Edition of the International Conference on Optimization and Applications - ICOA2025 provides a high-level international forum and an excellent venue for scientists, researchers, academic faculties, students, industry leaders, and others in the fields of optimization to present, discuss and publish their recent research results and approaches. The conference is an opportunity to develop new ideas and collaborations, to be aware of the latest search trends in the optimization techniques and their applications in the various fields. This 11th edition is enriched by very important special sessions that deal with problems using the latest methods of optimization.