| 26–27 Şubat | OpenThePaths 2026: Connecting People and Places Through Sustainable Access | Seattle, Washington, United States |
| 26 Şubat | Friends of MSF Mapathon | Santa Clara, California, United States |
| 27 Şubat | UN Maps Validation Friday Chat & Map |
| 27 Şubat | Missing water Bodies of Delhi | Shafipur, Noida, Uttar Pradesh, India |
| 27 Şubat | Vortrag: Mitmachen bei OpenStreetMap, der Basis vieler Outdoor-Apps | Essen, North Rhine-Westphalia, Germany |
| 27 Şubat | Potsdamer Mappertreffen | Potsdam, Brandenburg, Germany |
| 28 Şubat | Ferrara mapping party | Ferrara, Emilia-Romagna, Italy |
| 28 Şubat | Mapping Day @ Messina | Messina, Sicily, Italy |
| 28 Şubat | OpenStreetMap Community Meet-Up & Mapathon | Kadıköy, Turkey |
| 1 Mart | OSM India - Monthly Online Mapathon | New Delhi, India |
| 1 Mart | OSM Mapping Party @ Madurai | Madurai, Tamil Nadu, India |
| 3 Mart | PoliMappers Maptedì | Milan, Lombardy, Italy |
| 3 Mart | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 3 Mart | Rencontre OpenStreetMap à Lille | Lille, Hauts-de-France, France |
| 3 Mart | Missing Maps London: (Online) Mapathon [eng] |
| 4 Mart | iD Community Chat |
| 4 Mart | OSM Indoor Meetup |
| 4 Mart | Kvartální OSM pivo | Brno, South Moravian Region, Czechia |
| 4 Mart | Harzer OSM-Stammtisch |
| 4 Mart | Stuttgarter OpenStreetMap-Treffen | Stuttgart, Baden-Württemberg, Germany |
| 4 Mart | OpenHistoricalMap in North America | California, United States |
| 4 Mart | OSM US Mappy Hour: OpenHistoricalMap in North America |
| 5 Mart | 3. Open Data Day Flensburg | Flensburg, Schleswig-Holstein, Germany |
| 5 Mart | Missing Maps mapathon Žilina #21 | Žilina, Region of Žilina, Slovakia |
| 5 Mart | Réunion des contributeurs de Montrouge et du Sud de Paris | Montrouge, Ile-de-France, France |
| 6–7 Mart | FOSS4G:BG Open GIS Conference 2026 | Sofia, Sofia-City, Bulgaria |
| 6 Mart | OSMF Engineering Working Group meeting |
| 6 Mart | OpenStreetMap meetup in Gent - Pre-VLA-congres editie | Ghent, East Flanders, Belgium |
| 7 Mart | Vereniging Leraars Aardrijkskunde (VLA) conference 2026 | Sint-Niklaas, East Flanders, Belgium |
| 7 Mart | Social Mapping Sunday: Moort-ak Waadiny / Wellington Square Perth | Perth, Western Australia, Australia |
| 8 Mart | Social Mapping Sunday: Moort-ak Waadiny / Wellington Square Perth | Perth, Western Australia, Australia |
| 8 Mart | OSM Delhi Mapping Party No.27 (East Zone) | Delhi, India |
| 8 Mart | OSMmapperCPH | Copenhagen, Capital Region of Denmark, Denmark |
| 9 Mart | Friends of MSF UWO Mapathon | London, Ontario, Canada |
| 9 Mart | Březnový brněnský Missing Maps Mapathon na Geografickém ústavu | Brno, South Moravian Region, Czechia |
| 9 Mart | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 9 Mart | OpenStreetMap x Wikidata Taipei #86 | Chengnei, Taipei, Taiwan |
| 10 Mart | Hamburger Mappertreffen | Hamburg, Germany |
| 11 Mart | Logitech Missing Maps - Office Mapathon | Cork, Ireland |
| 11 Mart | The GAIN Mapathon | George Mason, Virginia, United States |
| 11 Mart | 185. OSM-Stammtisch Zürich | Zurich, Zurich, Switzerland |
| 12 Mart | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 14 Mart | Camera's in kaart brengen | Leuven, Flemish Brabant, Belgium |
| 17 Mart | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 17 Mart | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 17 Mart | 198. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 Mart | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 18 Mart | Online Mapathon - Ärzte ohne Grenzen |
| 18 Mart | 20. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 19 Mart | Rhein-Neckar OSM Treffen // Intro iD-Editor | Heidelberg, Baden-Württemberg, Germany |
| 21 Mart | Missing Maps Day Olomouc 2026 | Olomouc, Olomouc Region, Czechia |
| 21 Mart | OSM Mumbai Mapping Party No.8 (Western Line - North) | Vasai-Virar, Maharashtra, India |
| 22 Mart | Frühlingsmapping 2026 | Fulda, Hesse, Germany |
| 23 Mart | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 24 Mart | Rencontre OpenStreetMap et Territoires | Plouzané, Brittany, France |
| 24–27 Mart | FOSSGIS-Konferenz 2026 | Göttingen, Lower Saxony, Germany |
| 24 Mart | East Midlands pub meet-up | Derby, England, United Kingdom |
| 27 Mart | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 28 Mart | FOSSGIS 2026 - OSM-Samstag | Göttingen, Lower Saxony, Germany |
| 28–29 Mart | Chemnitzer Linux-Tage 2026 | Chemnitz, Saxony, Germany |
| 28 Mart | Local Chapters & Communities Congress 2026 |
| 30 Mart | OSM-Stammtisch Hannover | Hanover, Lower Saxony, Germany |
| 5 Nisan | OSM India - Monthly Online Mapathon | New Delhi, India |
| 7 Nisan | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 7 Nisan | Missing Maps London: (Online) Mapathon [eng] |
| 8 Nisan | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 11–12 Nisan | OSM Hackweekend Berlin-Brandenburg 04/2026 | Berlin, Germany |
| 12 Nisan | OSM Delhi Mapping Party No.28 (Meerut) | Meerut, Uttar Pradesh, India |
| 13 Nisan | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 13 Nisan | OpenStreetMap x Wikidata Taipei #87 | Chengnei, Taipei, Taiwan |
| 14 Nisan | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 16 Nisan | OSM-Treffen Freiburg/Brsg. | Freiburg im Breisgau, Baden-Württemberg, Germany |
| 18 Nisan | OSM Mumbai Mapping Party No.9 (Central Line) | Mumbai, Maharashtra, India |
| 19 Nisan | Mapping Party @ Chennai | Chennai, Tamil Nadu, India |
| 21 Nisan | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 21 Nisan | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 21 Nisan | 199. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 21 Nisan | East Midlands pub meet-up | Derby, England, United Kingdom |
| 21 Nisan | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 24 Nisan | 18. Mapathon & Mapping Party Rapperswil 2025 | Rapperswil, Rapperswil-Jona, St. Gallen, Switzerland |
| 27 Nisan | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 28 Nisan | Kieler Mapper*innentreffen | Kiel, Schleswig-Holstein, Germany |
| 28 Nisan | 78. Wiener OSM-Stammtisch | Vienna, Austria |
| 29 Nisan | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 30 Nisan–3 Mayıs | FOSSGIS-OSM-Communitytreffen im Linuxhotel | Essen, North Rhine-Westphalia, Germany |
| 1 Mayıs | MA1PING | Stuttgart, Baden-Württemberg, Germany |
| 3 Mayıs | OSM India - Monthly Online Mapathon | New Delhi, India |
| 5 Mayıs | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 5 Mayıs | Missing Maps London: (Online) Mapathon [eng] |
| 8 Mayıs | SOSM Association Annual Meeting | Bergdietikon, Aargau, Switzerland |
| 10 Mayıs | OSM Delhi Mapping Party No.29 (South Zone) | Delhi, India |
| 11 Mayıs | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 11 Mayıs | OpenStreetMap x Wikidata Taipei #88 | Chengnei, Taipei, Taiwan |
| 13 Mayıs | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 16 Mayıs | OSM Mumbai Mapping Party No.10 (Trans-Harbour Line - North) | Navi Mumbai, Maharashtra, India |
| 19 Mayıs | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 19 Mayıs | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 19 Mayıs | 200. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 19 Mayıs | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 Mayıs | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 27 Mayıs | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 2 Haziran | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 2 Haziran | Missing Maps London: (Online) Mapathon [eng] |
| 7 Haziran | OSM India - Monthly Online Mapathon | New Delhi, India |
| 8 Haziran | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 8 Haziran | OpenStreetMap x Wikidata Taipei #89 | Chengnei, Taipei, Taiwan |
| 11 Haziran | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 14 Haziran | OSM Delhi Mapping Party No.30 (West Zone) | Delhi, India |
| 16 Haziran | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 16 Haziran | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 16 Haziran | 201. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 16 Haziran | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 17 Haziran | 21. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 18 Haziran | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 20 Haziran | OSM Mumbai Mapping Party No.11 (Trans-Harbour Line - South) | Maharashtra, India |
| 22 Haziran | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 26–28 Haziran | State of the Map Africa 2025 | Dar es-Salaam, Tanzania |
| 26 Haziran | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 7 Temmuz | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 7 Temmuz | Missing Maps London: (Online) Mapathon [eng] |
| 13 Temmuz | OpenStreetMap x Wikidata Taipei #90 | Chengnei, Taipei, Taiwan |
| 21 Temmuz | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 21 Temmuz | 202. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 21 Temmuz | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 29 Temmuz | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 4 Ağustos | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 4 Ağustos | Missing Maps London: (Online) Mapathon [eng] |
| 10 Ağustos | OpenStreetMap x Wikidata Taipei #91 | Chengnei, Taipei, Taiwan |
| 18 Ağustos | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 18 Ağustos | 203. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 18 Ağustos | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 26 Ağustos | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 26 Ağustos | 79. Wiener OSM-Stammtisch | Vienna, Austria |
| 27 Ağustos | OpenStreetMap West Bengal Mapping Party + AnkushTheHero Day |
| 28–30 Ağustos | State of the Map - Paris | Champs-sur-Marne, Ile-de-France, France |
| 28 Ağustos | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 1 Eylül | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 1 Eylül | Missing Maps London: (Online) Mapathon [eng] |
| 7 Eylül | OpenStreetMap x Wikidata Taipei #92 | Chengnei, Taipei, Taiwan |
| 15 Eylül | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 15 Eylül | 204. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15 Eylül | 22. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 15 Eylül | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 Eylül | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 3 Ekim | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 5 Ekim | OpenStreetMap x Wikidata Taipei #93 | Chengnei, Taipei, Taiwan |
| 6 Ekim | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 6 Ekim | Missing Maps London: (Online) Mapathon [eng] |
| 20 Ekim | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 20 Ekim | 205. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 20 Ekim | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 27 Ekim | 80. Wiener OSM-Stammtisch | Vienna, Austria |
| 28 Ekim | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 3 Kasım | Missing Maps London: (Online) Mapathon [eng] |
| 7 Kasım | Maker Days Salzburg | Salzburg, Salzburg, Austria |
| 9 Kasım | OpenStreetMap x Wikidata Taipei #94 | Chengnei, Taipei, Taiwan |
| 17 Kasım | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 17 Kasım | 206. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 Kasım | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 Kasım | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 1 Aralık | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 1 Aralık | Missing Maps London: (Online) Mapathon [eng] |
| 7 Aralık | OpenStreetMap x Wikidata Taipei #95 | Chengnei, Taipei, Taiwan |
| 9 Aralık | 23. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 13 Aralık | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 15 Aralık | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 15 Aralık | 207. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15 Aralık | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 18 Aralık | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |