Links to Combinatorial Conferences

For posting of upcoming conferences to this list, send email to Douglas B. West at dwest|at|illinois.edu. Other conference lists: Combinatorics and related conferences (maintained by Keith Edwards); Graph Theory and Combinatorics (at the Conference Management System); Janos Pach's Conference List

Other links: Conference Series Archives, Open problems pages.

Conferences in 2026

Dec 7-11, Monash University, Melbourne, Australia, 48th Australasian Combinatorics Conference (48ACC)
Dec 6-9, Hangzhou, China, 37th International Symposium on Algorithms and Computation (ISAAC 2026)
Oct 21-23, University of Turku, Finland, 20th International Conference on Reachability Problems (RP’26)
Oct 19-21, Diag, Sapienza Università di Roma, Rome, Italy, Mixed Integer Programming European Workshop 2026
Oct 13-16, McMaster University, Hamilton, Ontario, Canada, 33rd International Symposium on String Processing and Information Retrieval (SPIRE 2026)
Oct 5-8, São Paulo, Brazil, 12th Latin-American Workshop on Cliques in Graphs (LAWCG 2026)
Sep 20-26, Bedlewo, Poland, 11th Polish Combinatorial Conference
Sep 15-18, University of Augsburg, Augsburg, Germany, 19th International Symposium on Algorithmic Game Theory (SAGT) 2026
Aug 31 - Sep 4, L'Aquila, Italy, European Symposium on Algorithm (ESA) 2026 (part of ALGO 2026)
Aug 30 - Sep 4, Starý Smokovec, High Tatras, Slovakia, 34th Cycles and Colourings Workshop
Aug 25-28, Nottingham, United Kingdom, 15th Practice and Theory of Automated Timetabling (PATAT 2026)
Aug 24-28, Daejeon Convention Center, Daejeon, South Korea, First ASIACOMB conference (ASIACOMB 2026)
Aug 24-28, Tallinn, Estonia, 15th International Conference on the Theory and Application of Diagrams (DIAGRAMS'26)
Aug 19-21, Boston University, Boston, MA, 30th International Conference on Randomization and Computation (RANDOM 2026) and 29th International Conference on Approximation Algorithms for Combinatorial Optimization Problems (APPROX 2026)
Aug 17-21, Brock University, St. Catharines, Ontario, Canada, 34th International Symposium on Graph Drawing and Network Visualization (GD 2026)
Aug 17-19, VIRTUAL (hosted at University of Haifa, Haifa, Israel), Fifth International Conference on Enumerative Combinatorics and Applications (ICECA 2026)
Aug 15-19, Ohrid, Macedonia, 10th Macedonian Workshop on Applied Mathematics and Graph Theory
Aug 12-14, Lakehead University, Orillia, Ontario, Canada, 38th Canadian Conference on Computational Geometry (CCCG 2026)
Aug 11-14, Novosibirsk State University, Novosibirsk, Russia, Siberian International Conference on Graph Theory and Combinatorics (SCGC-2026)
Aug 10-14, Technical University of Berlin, Berlin, Germany, 29th Workshop on Future Research in Combinatorial Optimization (FRICO26)
Aug 2-5, Carnegie-Mellon University and University of Pittsburgh, Pittsburgh, PA, International Conference on Bilevel Optimization (ICBO)
Jul 27 - Aug 7, Universidad de Costa Rica, San José, Costa Rica, CIMPA School on Combinatorial Structures in Geometry, Graphs, and Symmetry
Jul 27 - Aug 6, Iowa State University, Ames, IA, Graduate Research Workshop in Combinatorics (GRWC 2026)
Jul 23-25, Nanyang Technological University, Singapore, 32nd International Computing and Combinatorics Conference (COCOON 2026)
Jul 20-24, California State University, Los Angeles, CA, 24th annual Permutation Patterns Conference (2026)
Jul 20-24, TU Wien, Vienna, Austria, 10th International Conference on Lattice Path Combinatorics and Applications (LPC 2026)
Jul 20-22, Carnegie Mellon University, Pittsburgh, PA, Combinatorics at the Confluence (an ICM Satellite Conference)
Jul 12-26, Hong Kong University of Science and Technology, Hong Kong, Graphs and Groups, Tessellations and Transformations (G2T2), International Conference and PhD-master Summer School
Jul 12-17, University of Vienna, Vienna, Austria, 24th International Federation of Operational Research Societies Conference (IFORS 2026)
Jul 6-10, Cardiff University, Cardiff, Wales, UK, 31st British Combinatorial Conference (BCC 2026)
Jul 6-10, University of West Bohemia, Pilsen, Czech Republic, Czech Summer School on Discrete Mathematics 2026 (formerly Prague Summer School)
Jun 29 - Jul 10, University of Notre Dame, South Bend, IN, CMND 2026 Thematic Program: Algebraic Combinatorics and Applications
Jun 29 - Jul 1, University of Granada, Spain, 5th Discrete Mathematics Days (DMD 2026)
Jun 25-27, Presidency University, Bengaluru, India, International Conference on Graph Theory and its Applications (ICGTA26)
Jun 24-26, Chemnitz University of Technology, Chemnitz, Germany, Workshop: Structuring combinatorial problems with symmetry
Jun 24-26, Università di Pisa, Pisa, Italy, Algebraic Combinatorics in Pisa
Jun 22-26, Munich, Germany, 37th International Conference on Probabilistic, Combinatorial and Asymptotic Methods for the Analysis of Algorithms (AofA 2026)
Jun 22-25, University of California - San Diego, San Diego (La Jolla), CA, SIAM Conference on Discrete Mathematics (DM26)
Jun 22-25, Max Planck Institute of Cell Biology and Genetics, Dresden, Germany, Discrete Laplacians 2026 (DL26)
Jun 21-26, Gdańsk, Poland, 10th Gdańsk Conference on Graph Theory
Jun 17-19, University of Padova, Padova, Italy, 27th Conference on Integer Programming and Combinatorial Optimization (IPCO 2026)
Jun 17-19, Copenhagen, Denmark, 20th Scandinavian Symposium on Algorithm Theory (SWAT 2026)
Jun 15-19, Fields Institute, Toronto, Canada, 21st Workshop on Modelling and Mining Networks (WAW2026)
Jun 16-17, University of Groningen, Groningen, Netherlands, 5th Dutch Days of Combinatorics (DDoC)
Jun 15-17, Copenhagen, Denmark, 37th Annual Symposium on Combinatorial Pattern Matching (CPM 2026)
Jun 9-11, University of Illinois, Urbana-Champaign, IL, EXCILL V: Extremal Combinatorics at Illinois, also Jun 8 Summer School on Design Theory and Jun 12 Summer School on Flag Algebra
Jun 8-12, Université Clermont Auvergne, Clermont-Ferrand, France, 37th International Workshop on Combinatorial Algorithms (IWOCA 2026)
Jun 8-11, Ischia Island (Napoli), Italy, 16th Metaheuristics International Conference (MIC 2026)
Jun 8-10, Stockholm, Sweden, 11th IGAFIT Highlights of Algorithms Conference (HALG 2026)
Jun 7-10, Indian Institute of Technology Madras, Chennai, India, International Conference on Discrete Mathematics and Applications (ICDM 2026)
Jun 2-5, New Brunswick, NJ, 42nd International Symposium of Computational Geometry (SoCG'26)
Jun 2-5, Edinburgh, UK, SIAM Conference on Optimization (OP26)
Jun 2-4, KU Leuven, Kortrijk, Belgium, 52nd International Workshop on Graph-Theoretic Concepts in Computer Science (WG 2026)
May 27-29, IIT Bhilai, Chhattisgarh, India, 4th Meru Combinatorics Conference 2026
May 25-29, New Orleans, LA, 16th IEEE Workshop on Parallel / Distributed Combinatorics and Optimization (PDCO 2026) (in conjunction with the 40th IEEE International Parallel and Distributed Processing Symposium - IPDPS 2026)
May 23-24, Ocean University of China, Qingdao, China, 17th Annual Meeting of Asian Association for Algorithms and Computation
May 21-22, Palazzo delle Scienze - Cagliari, Italy, Days of Optimization in Cagliari (DOC2026)
May 18-22, Porquerolles, France, 13th International Conference on Fun with Algorithms (FUN 2026)
May 18-21, University of Connecticut, Stamford, CT, 23rd Mixed Integer Programming Workshop (MIP 2026)
May 16-17, Auburn University, Auburn, AL, 34th Cumberland Conference on Combinatorics, Graph Theory, and Computing
May 13-14, Queen Mary University London and London School of Economics, London, UK, 2026 Colloquia in Combinatorics
May 11-15, University of Quebec in Montreal (UQAM), Montreal, Quebec, Canada, Montreal ISM Discovery School: Combinatorics of Moduli of Curves
May 11-15, Bedlewo, Poland, Probability and Analysis 2026
May 6-8, Izmir, Turkey, 9th International Symposium on Combinatorial Optimization (ISCO 2026) (preceded May 4-5 by Spring School “Packing and Covering”)
May 4-8, Free University of Berlin, Berlin, Germany, Young Researchers Conference on Combinatorial Synergies
May 4-5, Northwestern University (host), Chicago, IL Recent Developments in Discrete Probability
May 2-3, University of Notre Dame, South Bend, IN, 11th Lake Michigan Workshop on Combinatorics and Graph Theory
May 2-3, University of Kansas, Lawrence, KS, Great Plains Combinatorics Conference 2026
Apr 22-24, Management School of Liège University, Liège, Belgium, 12th International Network Optimization Conference (INOC 2026)
Apr 20-22, University of Bristol, Bristol, United Kingdom, 7th Graduate Student Meeting in Applied Algebra and Combinatorics
Apr 18, Wake Forest University, Winston-Salem, NC, 28th Triangle Lectures in Combinatorics
Apr 18, Ball State University, Muncie, IN, MIGHTY LXV (MIdwest GrapH TheorY Conference)
Apr 13-17, Florianópolis, Brazil, 17th Latin American Theoretical Informatics Symposium (LATIN 2026)
Apr 11, Purdue University, West Lafayette, IN, AlGeCom XXVII (Algebra, Geometry, and Combinatorics Day)
Apr 8-10, Toulouse, France, 26th European Conference on Evolutionary Computation in Combinatorial Optimisation (EvoCOP 2026)
Mar 27-29, University of Illinois - Chicago, Chicago, IL, Graduate Student Combinatorics Conference (GSCC 2026)
Mar 26-27, Vellore Institute of Technology (VIT), Chennai, India, International Conference on Graphs and Fuzzy Graphs (ICGFG-2026)
Mar 26-27, Evanston, IL, 14th EAI International Conference on Game Theory for Networks (GameNets 2026)
Mar 25-27, Fern Universität, Hagen, Germany, 42nd European Workshop on Computational Geometry (EuroCG 2026)
Mar 9-13, Florida Atlantic University, Boca Raton, FL, 57th Southeastern International Conference on Combinatorics, Graph Theory, and Computing
Mar 5-6, Heinrich-Heine University, Düsseldorf, Germany, 16th Day on Computational Game Theory (CGT 2026) (contact andreas.abels@hhu.de)
Mar 4-6, Perugia, Italy, 20th International Conference and Workshops on Algorithms and Computation (WALCOM 2026)
Feb 12-14, Indian Institute of Technology, Dharwad, India, 12th Annual International Conference on Algorithms and Discrete Applied Mathematics (CALDAM 2026) (preceded by Feb 9-10, Indo-Polish Pre-conference School on Algorithms and Combinatorics
Feb 9-13, Jagiellonian University, Krakow, Poland, 51st International Conference on Current Trends in Theory and Practice of Computer Science (SOFSEM2026) (more emphasis than usual on combinatorics)
Feb 5-6, City University of London, London, UK, Sequences in London
Feb 2-4, Freie Universität, Berlin, Germany, Developments in Algorithmic, Discrete, and Tropical Geometry
Jan 20-23, Max Planck Institute for Mathematics in the Sciences, Leipzig, Germany, Recent Developments on Lattice Polytopes in Leipzig
Jan 19-23, IBS, Seoul, Korea (and online) Winter School on Recent Advances in Cut-Problem on Graphs
Jan 12-13, Vancouver, Canada, Symposium on Simplicity in Algorithms (SOSA26) (Joint with ACM-SIAM Symposium on Discrete Algorithms (SODA) and SIAM Symposium on Algorithm Engineering and Experiments (ALENEX'26))
Jan 5-9, Viña del Mar, Chile, XXI Summer School in Discrete Mathematics

Conference Series Archives

Archive sites for conference series provide a valuable record. Links for several appear below. These also may have expired for conference series that are now defunct. Archives may include such things as lists of talks, participants, and abstracts; even sometimes photos. If anyone knows of archive sites for other conference series in discrete mathematics, please let me know (send information to dwest(at)illinois(dot)edu). There are many other conference series that would benefit from having archive sites; any volunteers?

ACCOTA (Combinatorial and Computational Aspects of Optimization, Topology and Algebra)
ACCMCC (Australasian Conferences in Combinatorial Mathematics and Combinatorial Computing)
BADMath (Bay Area Discrete Mathematics Days)
BCC (British Combinatorial Conferences) (maintained by Keith Edwards)
C&C (Workshop on Cycles & Colourings - High Tatras)
CanaDAM - Canadian Discrete and Algorithmic Mathematics Conference
Cascadia Combinatorial Feast (formerly Combinatorial Potlatch; Puget Sound area)
CAAC (Combinatorial Algebra meets Algebraic Combinatorics)
CIG (Computational Intelligence and Games
Clemson Mini-Conference on Discrete Mathematics and Algorithms
COCOON (Combinatorics and Computing) (maintained by Michael Ley)
CoNE - Combinatorists of New England (series ended after 45 meetings - archive by Ruth Haas)
CombinaTexas (maintained by Catherine Yan)
DIMACS Reconnect Conferences
DIMACS Special Years, all DIMACS Workshops
Discrete Mathematics in New England (maintained by Karen Collins)
Discrete Mathematics Days in the Northeast (maintained by Karen Collins)
FPSAC (Formal Power Series and Algebraic Combinatorics)
GD (Graph Drawing) (maintained by Roberto Tamassia)
International Conference on Permutation Patterns
IWOCA (International Workshop on Combinatorial Algorithms)
LAGOS (Latin and American Algorithms, Graphs and Optimization Symposium
LATIN (Latin American Theoretical INformatics
LAWCG (Latin American Workshop on Cliques in Graphs)
MCCCC (Midwest Conference on Combinatorics, Cryptography and Computing) (maintained by Ralucca Gera)
MIGHTY (MIdwest GrapH TheorY) (maintained by Jay Bagga)
MOPTA (McMaster Optimization Conference)
MSRI Workshops (Mathematical Sciences Research Institute
NSF-CBMS Regional Research Conferences (Conference Board of the Mathematical Sciences)
Nordic Combinatorial Conference (NORCOM)
One World Combinatorics on Words Seminar
Séminaire Lotharingien de Combinatoire (maintained by Christian Krattenthaler)
SIAM Discrete Mathematics, SIAM Discrete Algorithms
WADS (Workshop on Algorithms and Data Structures)
WG (International Workshop on Graph-Theoretic Concepts in Computer Science)