| 20 9月 | OSM Delhi Mapping Party No.31 (South Extension) | Delhi, Delhi, India |
| 22 9月 | Mappy Hour OSM España | Madrid, Community of Madrid, Spain |
| 22 9月 | East Midlands pub meet-up | Derby, England, United Kingdom |
| 22 9月 | OSM-Verkehrswende #79 | Berlin, Germany |
| 22 9月 | Mappiamo le piste ciclabili - Catania | Catania, Sicily, Italy |
| 23 9月 | PoliMappers Maptedì | Milan, Lombardy, Italy |
| 23 9月 | OpenStreetMap, la carte à la carte ! | Nantes, Pays de la Loire, France |
| 23 9月 | Stammtisch | Hanover, Lower Saxony, Germany |
| 23 9月 | London pub meet-up | City of Westminster, England, United Kingdom |
| 23 9月 | Würzburger OSM-Treffen | Würzburg, Bavaria, Germany |
| 24 9月 | Pravidelný Missing Maps CZ-SK online Mapathon |
| 24 9月 | 🇧🇷 Lançamento de livros sobre mapeamento colaborativo | Rio de Janeiro, Rio de Janeiro, Brazil |
| 24 9月 | OSM-Treffen Freiburg/Br. | Freiburg im Breisgau, Baden-Württemberg, Germany |
| 25–27 9月 | OSM India @ IndiaFOSS 2026 | Bengaluru, Karnataka, India |
| 25 9月 | UN Mappers Mappy Hour |
| 25 9月 | Conferencia "OpenStreetMap: Datos abiertos y más" | Torreón, Coahuila, Mexico |
| 25 9月 | Taller "Mapeando mi entorno" | Torreón, Coahuila, Mexico |
| 25 9月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 26–27 9月 | Karlsruhe Hack Weekend September 2026 | Karlsruhe, Baden-Württemberg, Germany |
| 26 9月 | OpenStreetMap, la balade de la data | Nantes, Pays de la Loire, France |
| 26 9月 | Sudan Solidarity Series |
| 27 9月 | Mapping meetup in Uppsala | Uppsala, Sweden |
| 28 9月 | CartONG : Mapathons en ligne 2026-2027 |
| 29 9月 | 4. OSM Stammtisch Magdeburg | Magdeburg, Saxony-Anhalt, Germany |
| 29 9月 | South Bay Wiki and OpenStreetMap Meetup | Palo Alto, California, United States |
| 30 9月 | Rhein-Neckar OSM Treffen | Mannheim, Baden-Württemberg, Germany |
| 1 10月 | Angers Rencontre mensuelle OpenStreetMap | Angers, Pays de la Loire, France |
| 1 10月 | Rencontre mensuelle des contributeurs Paris sud | Montrouge, Ile-de-France, France |
| 2–4 10月 | Hackathon Wikimedia & OSM | Messina, Sicily, Italy |
| 2–4 10月 | FOSSGIS-OSM-Communitytreffen Nr. 26 im Linuxhotel | Essen, North Rhine-Westphalia, Germany |
| 3 10月 | GeoCamp 2026 | Langreo, Asturias, Spain |
| 3 10月 | OSM India - Monthly Online Mapathon | New Delhi, Delhi, India |
| 3 10月 | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 5 10月 | OpenStreetMap x Wikidata Taipei #93 | Chengnei, Taipei, Taiwan |
| 6–9 10月 | Open Transport Community Conference 2026 | Bern, Bern, Switzerland |
| 6 10月 | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 6 10月 | Braunschweiger Mappertreffen im Stratum 0 Hackerspace | Brunswick, Lower Saxony, Germany |
| 6 10月 | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 7 10月 | iD Community Chat |
| 7 10月 | Junta d'OpenStreetMap Català | Barcelona, Catalonia, Spain |
| 7 10月 | Stuttgarter OpenStreetMap-Treffen | Stuttgart, Baden-Württemberg, Germany |
| 8 10月 | Missing Maps Mapathon (Beginner) - Bangkok, Thailand |
| 8 10月 | OSM-Treffen Bochum | Bochum, North Rhine-Westphalia, Germany |
| 9 10月 | OSM-Znacht in Bern | Bern, Bern, Switzerland |
| 10 10月 | Modifichiamo Wiki e OSM insieme! - Catania | Catania, Sicily, Italy |
| 10 10月 | OpenStreetMap, des cartes à la carte ! | Angers, Pays de la Loire, France |
| 11 10月 | OSMmapperCPH | Copenhagen, Capital Region of Denmark, Denmark |
| 11 10月 | OpenStreetMap, des cartes à la carte ! | Angers, Pays de la Loire, France |
| 11 10月 | OSM Delhi Mapping Party No.33 (East Zone) | New Delhi, India |
| 12 10月 | Panoramax Nederland - Online Community Meeting #1 |
| 12 10月 | CartONG : Mapathons en ligne 2026-2027 |
| 12 10月 | 2026 Autumn Maptime | Amsterdam, North Holland, Netherlands |
| 13 10月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13 10月 | Hamburger Mappertreffen | Hamburg, Germany |
| 13 10月 | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 14 10月 | Assemblea d'OpenStreetMap Català | Barcelona, Catalonia, Spain |
| 15 10月 | FOSS4G Belgium | Brussels, Belgium |
| 16 10月 | OSMF Engineering Working Group meeting |
| 17 10月 | Atelier OpenStreetMap Metz | Metz, Grand Est, France |
| 20 10月 | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 20 10月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 20 10月 | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 20 10月 | 205. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 20 10月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 21 10月 | Stammtisch Karlsruhe | Karlsruhe, Baden-Württemberg, Germany |
| 24–25 10月 | OSM Hackweekend Berlin-Brandenburg 10/2026 | Berlin, Germany |
| 25 10月 | Mapping meetup in Uppsala | Uppsala, Sweden |
| 26 10月 | CartONG : Mapathons en ligne 2026-2027 |
| 26 10月 | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 27–29 10月 | State of the Map Latam 2026 | Mexico City, Mexico City, Mexico |
| 27 10月 | 80. Wiener OSM-Stammtisch | Vienna, Austria |
| 28 10月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 31 10月 | Linux Day 2026 in Pesaro | Pesaro, Marche, Italy |
| 3 11月 | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 5 11月 | Rencontre mensuelle des contributeurs Paris sud | Montrouge, Ile-de-France, France |
| 7 11月 | Maker Days Salzburg | Salzburg, Salzburg, Austria |
| 7 11月 | Mapathon @ Angera | Angera, Lombardy, Italy |
| 7 11月 | OSM India - Monthly Online Mapathon | New Delhi, India |
| 8 11月 | OSM Delhi Mapping Party No.34 (South Zone) | New Delhi, India |
| 9 11月 | CartONG : Mapathons en ligne 2026-2027 |
| 9 11月 | OpenStreetMap x Wikidata Taipei #94 | Chengnei, Taipei, Taiwan |
| 10 11月 | Hamburger Mappertreffen | Hamburg, Germany |
| 10 11月 | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 11 11月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 17 11月 | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 17 11月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 17 11月 | 206. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 11月 | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 17 11月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 21 11月 | Atelier OpenStreetMap Metz | Metz, Grand Est, France |
| 23 11月 | CartONG : Mapathons en ligne 2026-2027 |
| 25 11月 | Rhein-Neckar OSM Treffen | Mannheim, Baden-Württemberg, Germany |
| 25 11月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 1 12月 | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 1 12月 | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 3 12月 | Rencontre mensuelle des contributeurs Paris sud | Montrouge, Ile-de-France, France |
| 5 12月 | OSM India - Monthly Online Mapathon | New Delhi, India |
| 7 12月 | OpenStreetMap x Wikidata Taipei #95 | Chengnei, Taipei, Taiwan |
| 8 12月 | Hamburger Mappertreffen | Hamburg, Germany |
| 8 12月 | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 9 12月 | 23. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 10 12月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13 12月 | OSM Delhi Mapping Party No.35 (Outside Delhi) | New Delhi, India |
| 13 12月 | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 14 12月 | CartONG : Mapathons en ligne 2026-2027 |
| 15 12月 | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 15 12月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 15 12月 | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 15 12月 | 207. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15 12月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 18 12月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 11 1月 | CartONG : Mapathons en ligne 2026-2027 |
| 25 1月 | CartONG : Mapathons en ligne 2026-2027 |
| 25 1月 | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 8 2月 | CartONG : Mapathons en ligne 2026-2027 |
| 22 2月 | CartONG : Mapathons en ligne 2026-2027 |
| 8 3月 | CartONG : Mapathons en ligne 2026-2027 |
| 22 3月 | CartONG : Mapathons en ligne 2026-2027 |
| 29 3月 | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 12 4月 | CartONG : Mapathons en ligne 2026-2027 |
| 26 4月 | CartONG : Mapathons en ligne 2026-2027 |
| 10 5月 | CartONG : Mapathons en ligne 2026-2027 |
| 24 5月 | CartONG : Mapathons en ligne 2026-2027 |
| 31 5月 | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 14 6月 | CartONG : Mapathons en ligne 2026-2027 |
| 28 6月 | CartONG : Mapathons en ligne 2026-2027 |
| 26 7月 | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 27 9月 | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 29 11月 | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
Add your event to OpenStreetMap Calendar