| 12–13 مارس | March Missing Maps Mapathon |
| 13 مارس | OSM-Tools: Wenn die Welt zur Spielwiese wird | Fulda, Hesse, Germany |
| 14 مارس | Camera's in kaart brengen | Leuven, Flemish Brabant, Belgium |
| 17 مارس | A Mapathon to enrich participatory mapping of short supply chains around the Tokikoa label in the Basque Country | Tardets-Sorholus, Nouvelle-Aquitaine, France |
| 17 مارس | Mappy Hour OSM España | Zaragoza, Aragon, Spain |
| 17 مارس | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 17 مارس | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 17 مارس | 198. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 مارس | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 18 مارس | Rencontre des contributeurs de Vienne (38) | Vienne, Auvergne-Rhône-Alpes, France |
| 18 مارس | 20. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 18 مارس | Online Mapathon - Ärzte ohne Grenzen |
| 19 مارس | Camera's in kaart brengen | Ghent, East Flanders, Belgium |
| 19 مارس | Rhein-Neckar OSM Treffen // Intro iD-Editor | Heidelberg, Baden-Württemberg, Germany |
| 20 مارس | OSMF Engineering Working Group meeting |
| 21 مارس | Missing Maps Day Olomouc 2026 | Olomouc, Olomouc Region, Czechia |
| 22 مارس | Frühlingsmapping 2026 | Fulda, Hesse, Germany |
| 23 مارس | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 23 مارس | Bremer Mappertreffen | Bremen, Bremen, Germany |
| 24 مارس | Rencontre OpenStreetMap et Territoires | Plouzané, Brittany, France |
| 24–27 مارس | FOSSGIS-Konferenz 2026 | Göttingen, Lower Saxony, Germany |
| 24 مارس | East Midlands pub meet-up | Derby, England, United Kingdom |
| 27 مارس | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 28–29 مارس | Chemnitzer Linux-Tage 2026 | Chemnitz, Saxony, Germany |
| 28 مارس | FOSSGIS 2026 - OSM-Samstag | Göttingen, Lower Saxony, Germany |
| 28 مارس | Local Chapters & Communities Congress 2026 |
| 28 مارس | rencontre OSM | Saint-Brieuc, Brittany, France |
| 28 مارس | OSM Mumbai Mapping Party No.8 (Western Line - North) | Mira-Bhayander, Maharashtra, India |
| 30 مارس | OSM-Stammtisch Hannover | Hanover, Lower Saxony, Germany |
| 1 آوریل | Stuttgarter OpenStreetMap-Treffen | Stuttgart, Baden-Württemberg, Germany |
| 2 آوریل | Réunion des contributeurs de Montrouge et du Sud de Paris | Montrouge, Ile-de-France, France |
| 5 آوریل | OSM India - Monthly Online Mapathon | New Delhi, India |
| 7 آوریل | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 7 آوریل | Missing Maps London: (Online) Mapathon [eng] |
| 8 آوریل | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 10 آوریل | 186. OSM-Stammtisch Zürich | Zurich, Zurich, Switzerland |
| 11–12 آوریل | OSM Hackweekend Berlin-Brandenburg 04/2026 | Berlin, Germany |
| 12 آوریل | Editathon e mapathon alla Milano Marathon 2026 | Milan, Lombardy, Italy |
| 12 آوریل | OSM Delhi Mapping Party No.28 (Meerut) | Meerut, Uttar Pradesh, India |
| 12 آوریل | OSMmapperCPH | Copenhagen, Capital Region of Denmark, Denmark |
| 13 آوریل | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 13 آوریل | OpenStreetMap x Wikidata Taipei #87 | Chengnei, Taipei, Taiwan |
| 14 آوریل | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 16 آوریل | OSM-Treffen Freiburg/Brsg. | Freiburg im Breisgau, Baden-Württemberg, Germany |
| 18 آوریل | OSM Mumbai Mapping Party No.9 (Central Line) | Mumbai, Maharashtra, India |
| 19 آوریل | Mapping Party @ Chennai | Chennai, Tamil Nadu, India |
| 21 آوریل | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 21 آوریل | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 21 آوریل | East Midlands pub meet-up | Derby, England, United Kingdom |
| 21 آوریل | 199. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 21 آوریل | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 23 آوریل | Capital One TPM Summit Global Mapathon! | Richmond, Virginia, United States |
| 24 آوریل | 18. Mapathon & Mapping Party Rapperswil 2026 | Rapperswil, Rapperswil-Jona, St. Gallen, Switzerland |
| 27 آوریل | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 28 آوریل | Kieler Mapper*innentreffen | Kiel, Schleswig-Holstein, Germany |
| 28 آوریل | 78. Wiener OSM-Stammtisch | Vienna, Austria |
| 29 آوریل | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 30 آوریل–3 مه | FOSSGIS-OSM-Communitytreffen im Linuxhotel | Essen, North Rhine-Westphalia, Germany |
| 1 مه | MA1PING | Stuttgart, Baden-Württemberg, Germany |
| 3 مه | OSM India - Monthly Online Mapathon | New Delhi, India |
| 5 مه | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 5 مه | Missing Maps London: (Online) Mapathon [eng] |
| 8 مه | SOSM Association Annual Meeting | Bergdietikon, Aargau, Switzerland |
| 10 مه | OSM Delhi Mapping Party No.29 (South Zone) | Delhi, India |
| 11 مه | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 11 مه | OpenStreetMap x Wikidata Taipei #88 | Chengnei, Taipei, Taiwan |
| 13 مه | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 16 مه | OSM Mumbai Mapping Party No.10 (Trans-Harbour Line - North) | Navi Mumbai, Maharashtra, India |
| 19 مه | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 19 مه | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 19 مه | 200. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 19 مه | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 مه | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 27 مه | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 2 ژوئن | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 2 ژوئن | Missing Maps London: (Online) Mapathon [eng] |
| 7 ژوئن | OSM India - Monthly Online Mapathon | New Delhi, India |
| 8 ژوئن | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 8 ژوئن | OpenStreetMap x Wikidata Taipei #89 | Chengnei, Taipei, Taiwan |
| 11 ژوئن | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 14 ژوئن | OSM Delhi Mapping Party No.30 (West Zone) | Delhi, India |
| 16 ژوئن | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 16 ژوئن | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 16 ژوئن | 201. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 16 ژوئن | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 17 ژوئن | 21. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 18 ژوئن | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 20 ژوئن | OSM Mumbai Mapping Party No.11 (Trans-Harbour Line - South) | Maharashtra, India |
| 22 ژوئن | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 26–28 ژوئن | State of the Map Africa 2025 | Dar es-Salaam, Tanzania |
| 26 ژوئن | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 7 جولای | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 7 جولای | Missing Maps London: (Online) Mapathon [eng] |
| 13 جولای | OpenStreetMap x Wikidata Taipei #90 | Chengnei, Taipei, Taiwan |
| 21 جولای | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 21 جولای | 202. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 21 جولای | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 29 جولای | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 4 اوت | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 4 اوت | Missing Maps London: (Online) Mapathon [eng] |
| 10 اوت | OpenStreetMap x Wikidata Taipei #91 | Chengnei, Taipei, Taiwan |
| 18 اوت | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 18 اوت | 203. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 18 اوت | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 26 اوت | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 26 اوت | 79. Wiener OSM-Stammtisch | Vienna, Austria |
| 27 اوت | OpenStreetMap West Bengal Mapping Party + AnkushTheHero Day |
| 28–30 اوت | State of the Map 2026 | Champs-sur-Marne, Ile-de-France, France |
| 28 اوت | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 1 سپتامبر | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 1 سپتامبر | Missing Maps London: (Online) Mapathon [eng] |
| 7 سپتامبر | OpenStreetMap x Wikidata Taipei #92 | Chengnei, Taipei, Taiwan |
| 15 سپتامبر | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 15 سپتامبر | 22. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 15 سپتامبر | 204. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15 سپتامبر | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 سپتامبر | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 3 اکتبر | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 5 اکتبر | OpenStreetMap x Wikidata Taipei #93 | Chengnei, Taipei, Taiwan |
| 6 اکتبر | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 6 اکتبر | Missing Maps London: (Online) Mapathon [eng] |
| 20 اکتبر | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 20 اکتبر | 205. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 20 اکتبر | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 27–29 اکتبر | State of the Map LATAM in Mexico City | Mexico City, Mexico City, Mexico |
| 27 اکتبر | 80. Wiener OSM-Stammtisch | Vienna, Austria |
| 28 اکتبر | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 3 نوامبر | Missing Maps London: (Online) Mapathon [eng] |
| 7 نوامبر | Maker Days Salzburg | Salzburg, Salzburg, Austria |
| 9 نوامبر | OpenStreetMap x Wikidata Taipei #94 | Chengnei, Taipei, Taiwan |
| 17 نوامبر | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 17 نوامبر | 206. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 نوامبر | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 نوامبر | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 1 دسامبر | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 1 دسامبر | Missing Maps London: (Online) Mapathon [eng] |
| 7 دسامبر | OpenStreetMap x Wikidata Taipei #95 | Chengnei, Taipei, Taiwan |
| 9 دسامبر | 23. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 13 دسامبر | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 15 دسامبر | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 15 دسامبر | 207. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15 دسامبر | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 18 دسامبر | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
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