Preface ICBO 2024: 15th International Conference on Biological and Biomedical Ontology July 18 - July 19, 2024, Enschede, The Netherlands (ICBO 2024 website) The 15th International Conference on Biological and Biomedical Ontology was held at the University Twente in Enschede, The Netherlands. It was co-located with the 14th International Conference on Formal Ontology in Information Systems (FOIS). The conference included keynote addresses by Barend Mons from Leiden University Medical Center and Michel Dumontier from Maastricht University. There were nine papers submitted for peer-review to this conference. Out of these, seven papers were accepted for this volume, four as regular papers and three as short papers. Additionally, we offered authors the option to submit manuscripts to the ICBO Thematic Series of the Journal of Biomedical Semantics. There were three papers submitted to this track, of which two were accepted. Thirteen poster abstracts were submitted, with twelve of them included in this volume. We have also included a paper that was reviewed and presented at the CELLS 2024 workshop. ICBO 2024 Organization Committee General Chair William D. Duncan, University of Florida, USA Robert Hoehndorf, King Abdullah University of Science and Technology, Saudi Arabia Program Committee Chair Karin Slater, University of Birmingham, UK Coordination of Workshops and Software Demonstrations Asiyah Lin, Axle Research & Technology/NCATS, USA Matthew Lange, IC-FOODS.org Local organization (FOIS and ICBO) Tiago Prince Sales, University of Twente, The Netherlands Journal Track Chair Robert Hoehndorf, King Abdullah University of Science and Technology, Saudi Arabia Website and Outreach Chair Eduardo Felipe, University of Itajubá - Unifei, Brazil William D. Duncan, University of Florida, USA ICBO 2024 Proceedings Editors William D. Duncan, University of Florida, USA Robert Hoehndorf, King Abdullah University of Science and Technology, Saudi Arabia Keynote Speakers Barend Mons, Leiden University Medical Center, The Netherlands Michel Dumontier, Maastricht University, The Netherlands Program Committee (affiliations as of 2024) Adrien Barton IRIT-MELODIE, CNRS Alexander D. Diehl University at Buffalo Anuwat Pengput University at Buffalo Asiyah Lin Axle Informatics LLC Barry Smith State University of New Year in Buffalo Bart Gajderowicz University of Toronto William D. Duncan University of Florida Charles T. Hoyt Biopragmatics Consulting Group Chris Mungall Lawrence Berkeley National Laboratory Daniel R. Korn UNC Chapel Hill Egon L. Willighagen Maastricht University Emma Griffiths Simon Fraser University Enrique Wulff ICMAN-CSIC Fernanda Farinelli University of Brasilia Fumiaki Toyoshima Institut de Recherche en Informatique de Toulouse Furqan Aziz University of Leicester Gary Berg-Cross Ontolog Board Member Gopikrishnan M. Chandrasekharan University of Florida Hande K. McGinty Kansas State University James P. Balhoff RENCI, University of North Carolina at Chapel Hill James McLaughlin EMBL-EBI Jane Lomax SciBite Jesualdo Tomas Fernandez Breis Universidad de Murcia Jin Lu University of Georgia John Beverley University at Buffalo Junguk Hur University of North Dakota Karin M.Verspoor RMIT University Karl Helmer Massachusetts General Hospital Maria das Graças G da Silva Teixeira UFES Mathias Brochhausen UAMS Matthew H. Brush University of North Carolina Chapel Hill Mauricio B. Almeida UFMG Michel Dumontier Maastricht University Muhammad Amith University of Texas Medical Branch Núria Queralt Rosinach Leiden University Medical Center Pance Panov Jozef Stefan Institute Patrick L. Ray Allen Institute for Brain Science Paul N. Schofield University Of Cambridge Phillip Lord Newcastle University Pierre Grenon NCOR Remzi Celebi Maastricht University Robert Stevens University of Manchester Saurav kumar IISPV Spiros Denaxas University College London Tarini Naravane UC Davis Yongqun He University of Michigan Yuji Zhang University of Maryland Baltimore ICBO 2024 Workshops • OBO Academy ICBO 2024 Organizers: Nico Matentzoglu, Semanticly Nicole Vasilevsky, Critical Path Institute • The 13th International Workshop on Vaccine and Drug Ontology Studies, VODS 2024 Organizers: Cui Tao, PhD, School of Biomedical Informatics, University of Texas, Health Science Center at Houston Yongqun "Oliver" He, PhD, University of Michigan Medical School Junguk Hur, PhD, University of North Dakota School of Medicine & Health Sciences • The 8th International Cells in Experimental Life Science Workshop, CELLS 2024 Organizers: Alexander D. Diehl, PhD, University at Buffalo Yongqun "Oliver" He, PhD, University of Michigan Medical School David Osumi-Sutherland, PhD, Cambridge Tiago Lubiana, Universtity of São Paulo