| 22 September | Mappy Hour OSM España | Madrid, Community of Madrid, Spain |
| 22 September | East Midlands pub meet-up | Derby, England, United Kingdom |
| 22 September | Edinburgh Social | City of Edinburgh, Scotland, United Kingdom |
| 22 September | OSM-Verkehrswende #79 | Berlin, Germany |
| 22 September | Mappiamo le piste ciclabili - Catania | Catania, Sicily, Italy |
| 23 September | PoliMappers Maptedì | Milan, Lombardy, Italy |
| 23 September | Stammtisch | Hanover, Lower Saxony, Germany |
| 23 September | OpenStreetMap, la carte à la carte ! | Nantes, Pays de la Loire, France |
| 23 September | Würzburger OSM-Treffen | Würzburg, Bavaria, Germany |
| 23 September | London pub meet-up | City of Westminster, England, United Kingdom |
| 24 September | Pravidelný Missing Maps CZ-SK online Mapathon |
| 24 September | 🇧🇷 Lançamento de livros sobre mapeamento colaborativo | Rio de Janeiro, Rio de Janeiro, Brazil |
| 24 September | OSM-Treffen Freiburg/Br. | Freiburg im Breisgau, Baden-Württemberg, Germany |
| 25–27 September | OSM India @ IndiaFOSS 2026 | Bengaluru, Karnataka, India |
| 25 September | UN Mappers Mappy Hour |
| 25 September | Conferencia "OpenStreetMap: Datos abiertos y más" | Torreón, Coahuila, Mexico |
| 25 September | Taller "Mapeando mi entorno" | Torreón, Coahuila, Mexico |
| 25 September | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 26–27 September | Karlsruhe Hack Weekend September 2026 | Karlsruhe, Baden-Württemberg, Germany |
| 26 September | OSM Workshop SotM Kerala Pre-event -1 | Kozhippara, Kerala, India |
| 26 September | OpenStreetMap, la balade de la data | Nantes, Pays de la Loire, France |
| 26 September | Sudan Solidarity Series |
| 27 September | Mapping meetup in Uppsala | Uppsala, Sweden |
| 28 September | CartONG : Mapathons en ligne 2026-2027 |
| 29 September | 4. OSM Stammtisch Magdeburg | Magdeburg, Saxony-Anhalt, Germany |
| 29 September | South Bay Wiki and OpenStreetMap Meetup | Palo Alto, California, United States |
| 30 September | Rhein-Neckar OSM Treffen | Mannheim, Baden-Württemberg, Germany |
| 1 October | Angers Rencontre mensuelle OpenStreetMap | Angers, Pays de la Loire, France |
| 1 October | Rencontre mensuelle des contributeurs Paris sud | Montrouge, Ile-de-France, France |
| 2–4 October | Hackathon Wikimedia & OSM | Messina, Sicily, Italy |
| 2–4 October | FOSSGIS-OSM-Communitytreffen Nr. 26 im Linuxhotel | Essen, North Rhine-Westphalia, Germany |
| 3 October | GeoCamp 2026 | Langreo, Asturias, Spain |
| 3 October | OSM India - Monthly Online Mapathon | New Delhi, Delhi, India |
| 3 October | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 5 October | TNEI Mapathon 2026 |
| 5 October | OpenStreetMap x Wikidata Taipei #93 | Chengnei, Taipei, Taiwan |
| 6–9 October | Open Transport Community Conference 2026 | Bern, Bern, Switzerland |
| 6 October | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 6 October | Braunschweiger Mappertreffen im Stratum 0 Hackerspace | Brunswick, Lower Saxony, Germany |
| 6 October | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 7 October | iD Community Chat |
| 7–8 October | Everywhere She Maps workshop 2026 | Akosua Village, Central Region, Ghana |
| 7 October | Stuttgarter OpenStreetMap-Treffen | Stuttgart, Baden-Württemberg, Germany |
| 7 October | Junta d'OpenStreetMap Català | Barcelona, Catalonia, Spain |
| 8 October | Missing Maps Mapathon (Beginner) - Bangkok, Thailand |
| 8 October | Brussels meetup - byebye Thierry & Joost | Brussels, Belgium |
| 8 October | OSM-Treffen Bochum | Bochum, North Rhine-Westphalia, Germany |
| 9 October | OSM-Znacht in Bern | Bern, Bern, Switzerland |
| 10 October | Modifichiamo Wiki e OSM insieme! - Catania | Catania, Sicily, Italy |
| 10 October | OpenStreetMap, des cartes à la carte ! | Angers, Pays de la Loire, France |
| 11 October | OSMmapperCPH | Copenhagen, Capital Region of Denmark, Denmark |
| 11 October | OpenStreetMap, des cartes à la carte ! | Angers, Pays de la Loire, France |
| 11 October | OSM Delhi Mapping Party No.33 (East Zone) | New Delhi, India |
| 12 October | Panoramax Nederland - Online Community Meeting #1 |
| 12 October | CartONG : Mapathons en ligne 2026-2027 |
| 12 October | 2026 Autumn Maptime | Amsterdam, North Holland, Netherlands |
| 13 October | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13 October | Hamburger Mappertreffen | Hamburg, Germany |
| 13 October | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 14 October | 🏴 North Wales Mapathon Gogledd Cymru 🏴 | Bethesda, Wales, United Kingdom |
| 14 October | Assemblea d'OpenStreetMap Català | Barcelona, Catalonia, Spain |
| 15 October | FOSS4G Belgium | Brussels, Belgium |
| 16 October | OSMF Engineering Working Group meeting |
| 17 October | Encuentro OSM Argentina 2026 | Pergamino, Buenos Aires, Argentina |
| 17 October | Atelier OpenStreetMap Metz | Metz, Grand Est, France |
| 20 October | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 20 October | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 20 October | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 20 October | 205. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 20 October | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 21 October | Stammtisch Karlsruhe | Karlsruhe, Baden-Württemberg, Germany |
| 24–25 October | OSM Hackweekend Berlin-Brandenburg 10/2026 | Berlin, Germany |
| 25 October | Mapping meetup in Uppsala | Uppsala, Sweden |
| 26 October | CartONG : Mapathons en ligne 2026-2027 |
| 26 October | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 27–29 October | State of the Map Latam 2026 | Mexico City, Mexico City, Mexico |
| 27 October | 80. Wiener OSM-Stammtisch | Vienna, Austria |
| 27 October | East Midlands pub meet-up | Derby, England, United Kingdom |
| 28 October | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 31 October | Linux Day 2026 in Pesaro | Pesaro, Marche, Italy |
| 3 November | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 5 November | Rencontre mensuelle des contributeurs Paris sud | Montrouge, Ile-de-France, France |
| 7 November | Maker Days Salzburg | Salzburg, Salzburg, Austria |
| 7 November | Mapathon @ Angera | Angera, Lombardy, Italy |
| 7 November | OSM India - Monthly Online Mapathon | New Delhi, India |
| 8 November | OSM Delhi Mapping Party No.34 (South Zone) | New Delhi, India |
| 9 November | CartONG : Mapathons en ligne 2026-2027 |
| 9 November | OpenStreetMap x Wikidata Taipei #94 | Chengnei, Taipei, Taiwan |
| 10 November | Hamburger Mappertreffen | Hamburg, Germany |
| 10 November | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 11 November | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 14–15 November | State of the Map Kerala | Ettumanoor, Kerala, India |
| 17 November | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 17 November | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 17 November | 206. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 November | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 17 November | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 21 November | Atelier OpenStreetMap Metz | Metz, Grand Est, France |
| 23 November | CartONG : Mapathons en ligne 2026-2027 |
| 24 November | OSM-Verkehrswende #80 | Berlin, Germany |
| 25 November | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 25 November | Rhein-Neckar OSM Treffen | Mannheim, Baden-Württemberg, Germany |
| 1 December | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 1 December | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 3 December | Rencontre mensuelle des contributeurs Paris sud | Montrouge, Ile-de-France, France |
| 5 December | OSM India - Monthly Online Mapathon | New Delhi, India |
| 7 December | OpenStreetMap x Wikidata Taipei #95 | Chengnei, Taipei, Taiwan |
| 8 December | Hamburger Mappertreffen | Hamburg, Germany |
| 8 December | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 9 December | 23. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 10 December | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13 December | OSM Delhi Mapping Party No.35 (Outside Delhi) | New Delhi, India |
| 13 December | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 14 December | CartONG : Mapathons en ligne 2026-2027 |
| 15 December | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 15 December | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 15 December | 207. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15 December | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 15 December | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 18 December | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 11 January | CartONG : Mapathons en ligne 2026-2027 |
| 25 January | CartONG : Mapathons en ligne 2026-2027 |
| 25 January | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 26 January | OSM-Verkehrswende #81 | Berlin, Germany |
| 8 February | CartONG : Mapathons en ligne 2026-2027 |
| 22 February | CartONG : Mapathons en ligne 2026-2027 |
| 8 March | CartONG : Mapathons en ligne 2026-2027 |
| 22 March | CartONG : Mapathons en ligne 2026-2027 |
| 29 March | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 12 April | CartONG : Mapathons en ligne 2026-2027 |
| 26 April | CartONG : Mapathons en ligne 2026-2027 |
| 10 May | CartONG : Mapathons en ligne 2026-2027 |
| 24 May | CartONG : Mapathons en ligne 2026-2027 |
| 31 May | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 14 June | CartONG : Mapathons en ligne 2026-2027 |
| 28 June | CartONG : Mapathons en ligne 2026-2027 |
| 26 July | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 27 September | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 29 November | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
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