This book constitutes the refereed proceedings of the 11th International Workshop on Hybrid
Metaheuristics HM 2019 held in Concepción Chile in January 2019. The 11 revised full papers
and 5 short papers presented were carefully reviewed and selected from 23 submissions. The
papers present hybridization strategies and explore the integration of new techniques coming
from other areas of expertise. They cover a variety of topics such as low-level hybridization
high-level hybridization portfolio techniques cooperative search and theoretical aspects of
hybridization.
