| 19th August–30th September | Mapatón Nacional de México 2025 | Zacatecas, Mexico |
| 19th–21st September | FOSSGIS-OSM-Communitytreffen im Linuxhotel | Essen, North Rhine-Westphalia, Germany |
| 21st September | Social Mapping Sunday: South Perth Foreshore | Western Australia, Australia |
| 21st September | 2025 Trento Mapathon | Sardagna, Trento, Trentino – Alto Adige/Südtirol, Italy |
| 22nd September | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 23rd September | HOT/Missing Maps London In-Person Mapathon | London, England, United Kingdom |
| 23rd September | Hamburger Mapping Spaziergang | Hamburg, Germany |
| 23rd September | OSM-Verkehrswende #70 | Berlin, Germany |
| 23rd September | OSM Edinburgh pub meetup | City of Edinburgh, Scotland, United Kingdom |
| 24th September | Réunion OpenStreetMap | Vandœuvre-lès-Nancy, Grand Est, France |
| 25th September | FOSS4G Belgium | Schaerbeek - Schaarbeek, Belgium |
| 25th September | [Online] OpenStreetMap Foundation board of Directors - public videomeeting |
| 25th September | Mappy Hour OSM España - Notatón | Madrid, Community of Madrid, Spain |
| 25th September | OSM-Stammtisch Hannover | Hanover, Lower Saxony, Germany |
| 25th September | A Synesthete’s Atlas: Cartographic Improvisations Between Eric Theise & Ed Osborn | Pawtucket, Rhode Island, United States |
| 25th September | [Online] 🇧🇷 Oficina de mapeamento de áreas no OpenStreetMap com editor JOSM | Rio de Janeiro, Rio de Janeiro, Brazil |
| 26th September | UN Mappers Mappy Hour |
| 26th September | Workshop „OpenStreetMap“ beim Science Day 2025 | Kiel, Schleswig-Holstein, Germany |
| 26th September | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 27th September | Encuentro de la Comunidad de OpenStreetMap de Argentina | Luján, Buenos Aires, Argentina |
| 27th September | Atelier du groupe local de Metz - Septembre 2025 | Metz, Grand Est, France |
| 28th September | 23rd OSM Delhi MapWalk | Gurgaon, Haryana, India |
| 29th September | Rencontre Saint-Étienne et sud Loire | Saint-Étienne, Auvergne-Rhône-Alpes, France |
| 30th September | OSM Suomi kartoittajatapaaminen | Helsinki, Uusimaa, Finland |
| 1st October | Stuttgarter OpenStreetMap-Treffen | Stuttgart, Baden-Württemberg, Germany |
| 2nd October | Mappy Hour OSM España | Madrid, Community of Madrid, Spain |
| 2nd October | OSM-Treffen in Bochum | Bochum, North Rhine-Westphalia, Germany |
| 3rd–5th October | State of the Map 2025 | Quezon City, Philippines |
| 3rd October | 17. Mapathon & Mapping Party Rapperswil 2025 | Rapperswil, Rapperswil-Jona, St. Gallen, Switzerland |
| 3rd October | OSMF Engineering Working Group meeting |
| 3rd October | Maptime Amsterdam: Autumn mapping party | Amsterdam, North Holland, Netherlands |
| 5th October | OSM India Online (Remote) Mapping Party | New Delhi, Delhi, India |
| 7th October | Vortrag - Wie nutze ich OpenStreetMap - BWS Lehen-Vorstadt, Salzburg | Salzburg, Salzburg, Austria |
| 7th October | Missing Maps London: (Online) Mapathon [eng] |
| 7th October | East Midlands pub meet-up | Derby, England, United Kingdom |
| 9th October | Mappy Hour OSM España | Madrid, Community of Madrid, Spain |
| 9th October | OpenStreetMap Midwest Meetup | Ohio, United States |
| 10th October | 208. OSM-Stammtisch Berlin-Brandenburg | Berlin, Germany |
| 11th–12th October | OSM Hackweekend Berlin-Brandenburg 10/2025 | Berlin, Germany |
| 12th October | OSMmapperCPH | Copenhagen, Capital Region of Denmark, Denmark |
| 12th October | 24th OSM Delhi MapWalk (Outer West zone) | Delhi, India |
| 13th October | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 13th October | Atelier découverte et initiation | Grenoble, Auvergne-Rhône-Alpes, France |
| 13th October | OpenStreetMap x Wikidata Taipei #81 | Chengnei, Taipei, Taiwan |
| 14th October | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 14th October | Hamburger Mappertreffen | Hamburg, Germany |
| 15th October | Stammtisch Karlsruhe | Karlsruhe, Baden-Württemberg, Germany |
| 17th–18th October | Open Transport Community Conference (ÖBB) |
| 17th–18th October | Open Transport Community Conference | Vienna, Austria |
| 18th October | OSM Mumbai MapWalk #4 | Mumbai, Maharashtra, India |
| 19th October | 25th OSM Delhi MapWalk (Meerut) | Meerut, Uttar Pradesh, India |
| 21st October | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 21st October | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 21st October | 193. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 21st October | OSM Edinburgh pub meetup | City of Edinburgh, Scotland, United Kingdom |
| 21st October | Lüneburger Mappertreffen | Lüneburg, Lower Saxony, Germany |
| 22nd October | Réunion OpenStreetMap | Vandœuvre-lès-Nancy, Grand Est, France |
| 22nd October | 76. Wiener OSM-Stammtisch | Vienna, Austria |
| 25th October | OSM-Stammtisch Hannover | Hanover, Lower Saxony, Germany |
| 27th October | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 28th–30th October | State of the Map Nigeria 2025 Conference Enugu | Enugu State, Nigeria |
| 28th October | Kieler Mapper*innentreffen | Kiel, Schleswig-Holstein, Germany |
| 28th October | OSM Radinfra-Mapathon #4 | Vogtei, Thuringia, Germany |
| 29th October | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 4th November | OSM Treffen Salzburg | Salzburg, Salzburg, Austria |
| 4th November | East Midlands pub meet-up | Derby, England, United Kingdom |
| 4th November | Missing Maps London: (Online) Mapathon [eng] |
| 7th–9th November | itWikiCon | Catania, Sicily, Italy |
| 8th–9th November | Karlsruhe Hack Weekend November 2025 | Karlsruhe, Baden-Württemberg, Germany |
| 8th November | Maker Faire Salzburg | Salzburg, Salzburg, Austria |
| 10th November | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 10th November | OpenStreetMap x Wikidata Taipei #82 | Chengnei, Taipei, Taiwan |
| 11th November | Hamburger Mappertreffen | Hamburg, Germany |
| 12th November | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13th November | OpenStreetMap Midwest Meetup | Ohio, United States |
| 14th–15th November | State of the Map Europe | Dundee, Scotland, United Kingdom |
| 18th November | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 18th November | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 18th November | 194. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 18th November | OSM Edinburgh pub meetup | City of Edinburgh, Scotland, United Kingdom |
| 18th November | Lüneburger Mappertreffen | Lüneburg, Lower Saxony, Germany |
| 24th November | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 25th November | OSM-Stammtisch Hannover | Hanover, Lower Saxony, Germany |
| 26th November | Réunion OpenStreetMap | Vandœuvre-lès-Nancy, Grand Est, France |
| 26th November | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 28th–30th November | State of the Map Africa 2025 | Dar es-Salaam, Tanzania |
| 2nd December | OSM Treffen Salzburg | Salzburg, Salzburg, Austria |
| 2nd December | Missing Maps London: (Online) Mapathon [eng] |
| 6th–7th December | PSL XXL | Paris, France |
| 8th December | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 8th December | OpenStreetMap x Wikidata Taipei #83 | Chengnei, Taipei, Taiwan |
| 9th December | Hamburger Mappertreffen | Hamburg, Germany |
| 11th December | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 11th December | OpenStreetMap Midwest Meetup | Ohio, United States |
| 16th December | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 16th December | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 16th December | 195. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 16th December | Lüneburger Mappertreffen | Lüneburg, Lower Saxony, Germany |
| 18th December | 19. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 18th December | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 22nd December | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 26th December | OSM-Stammtisch Hannover | Hanover, Lower Saxony, Germany |
| 8th January | OpenStreetMap Midwest Meetup | Ohio, United States |
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