Biomedical coating research focuses on understanding the interaction between implant surface and biological system and the exploitation of this knowledge to design improved interfaces with biological systems [1,2]. The incorporation of inorganic nanofillers of calcium phosphate (CaP), such as hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP), in resorbable organic polymers has been shown accelerate in situ the specific interaction with bone cell surface receptors and thus can properly direct cell proliferation and differentiation [2–5]. In this study, we investigated the functionalization of titanium with chitosan and nanostructured CaP via an electrolytic chemical deposition. [1] R.A. Surmenev, M.A. Surmeneva, A.A. Ivanova, Significance of calcium phosphate coatings for the enhancement of new bone osteogenesis – A review. Acta Biomater., 2014, 10, pp. 557-579. [2] H. Hornberger, S. Virtanen, A.R. Boccaccini, Biomedical coatings on magnesium alloys – A review. Acta Biomater., 2014, 8, pp. 2442-2455. [3] L. Pighinelli, M. Kucharska, Chitosan–hydroxyapatite composites. Carbohydr. Polym., 2013, 93, pp. 256-262. [4] J.H. Kang, H.C. Kim, et al., Osteoconductive effect of chitosan/hydroxyapatite composite matrix on rat skull defect. Tissue Eng. Regen. Med., 2011, 8(1), pp. 23-31. [5] S.M. Kuo, S.J. Chang, et al., Guided tissue regeneration with use of β-TCP/chitosan composite membranes. J. Appl. Polym. Sci., 2009, 112, pp. 3127-3134.