This volume contains the proceedings of the IX International Conference on Hypernuclear and Strange Particle Physics (HYP 2006). This conference series, started in 1982, is devoted to the progress of our knowledge about strangeness flavour in hadron and nuclear physics. Besides the traditional topics as hadron structure, hypernuclear spectroscopy and weak decay of hypernuclei, a particular focus of this conference was on the properties of strange mesons and their binding in nuclear systems.