| 4 一月 | OSM India - Monthly Online Mapathon | New Delhi, India |
| 6 一月 | Missing Maps London: (Online) Mapathon [eng] |
| 7 一月 | iD Community Chat |
| 7 一月 | Stuttgarter OpenStreetMap-Treffen | Stuttgart, Baden-Württemberg, Germany |
| 8 一月 | MapYourGrid webinar: Data quality in OpenStreetMap for energy system planning |
| 8 一月 | 211. OSM-Stammtisch Berlin-Brandenburg | Berlin, Germany |
| 8 一月 | OSM-Treffen in Bochum | Bochum, North Rhine-Westphalia, Germany |
| 8 一月 | OpenStreetMap Midwest Meetup | Ohio, United States |
| 8 一月 | OSM-Stammisch Dresden | Dresden, Saxony, Germany |
| 9 一月 | OSMF Engineering Working Group meeting |
| 9 一月 | Erstes Online-Treffen der OSM-Mapper:innen im Sauerland | Bad Fredeburg, Schmallenberg, North Rhine-Westphalia, Germany |
| 9 一月 | 183. OSM-Stammtisch Zürich | Zurich, Zurich, Switzerland |
| 10 一月 | Mapping party @ New Year's brunch by Wikimedia CH | Pedrinate, Chiasso, Ticino, Switzerland |
| 11 一月 | OSM Delhi Mapping Party No.25 (Central Zone) | New Delhi, India |
| 11 一月 | OSMmapperCPH | Copenhagen, Capital Region of Denmark, Denmark |
| 12 一月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 12 一月 | OpenStreetMap x Wikidata Taipei #84 | Chengnei, Taipei, Taiwan |
| 13 一月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 18 一月 | Mapping Party @ Surathkal | Mukka, Karnataka, India |
| 20 一月 | East Midlands pub meet-up | Derby, England, United Kingdom |
| 20 一月 | OpenStreetMap Belgium — Arlon / Ardenne belge / Gaume — Social | Aubange, Luxembourg, Belgium |
| 20 一月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 20 一月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 20 一月 | 196. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 20 一月 | East Midlands pub meet-up | Derby, England, United Kingdom |
| 20 一月 | OpenStreetMap Belgium — Arlon / Ardenne belge / Gaume — Meeting | Aubange, Luxembourg, Belgium |
| 20 一月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 24 一月 | State of the Map India 2026 | Nashik, Maharashtra, India |
| 26 一月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 27 一月 | Kieler Mapper*innentreffen | Kiel, Schleswig-Holstein, Germany |
| 27 一月 | OSM-Verkehrswende #71 | Berlin, Germany |
| 28 一月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 29 一月 | 2026 Kickoff Meetup – Mapping, Fireside Chats, Show & Tell, and More! | Amsterdam, North Holland, Netherlands |
| 30–31 一月 | Mapping USA 2026 |
| 30 一月 | OpenStreetMap meetup in Gent | Ghent, East Flanders, Belgium |
| 31 一月 | Wikiraduno e mapping party ad Aosta @ Fiera di Sant'Orso | Arpuilles, Aosta, Aosta Valley, Italy |
| 31 一月 | OSM Mumbai Mapping Party No.6 (Mumbai City) | Mumbai, Maharashtra, India |
| 1 二月 | OSM India - Monthly Online Mapathon | New Delhi, India |
| 3 二月 | Missing Maps London: (Online) Mapathon [eng] |
| 5 二月 | OSM-Treffen Freiburg/Brsg. | Freiburg im Breisgau, Baden-Württemberg, Germany |
| 7 二月 | Braunschweiger Mappertreffen im Stratum0 Hackerspace | Brunswick, Lower Saxony, Germany |
| 8 二月 | OSM Delhi Mapping Party No.26 (North Zone) | Delhi, India |
| 8 二月 | OSMmapperCPH | Copenhagen, Capital Region of Denmark, Denmark |
| 8 二月 | Mapping Party @ Chennai | Chennai, Tamil Nadu, India |
| 9 二月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 9 二月 | OpenStreetMap x Wikidata Taipei #85 | Chengnei, Taipei, Taiwan |
| 11 二月 | Online Mapathon von ÄRZTE OHNE GRENZEN |
| 11 二月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 17 二月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 17 二月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 17 二月 | 197. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 二月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 21–22 二月 | Karlsruhe Hack Weekend February 2026 | Karlsruhe, Baden-Württemberg, Germany |
| 21 二月 | OSM Mumbai Mapping Party No.7 (Western Line - South) | Mumbai, Maharashtra, India |
| 23 二月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 25 二月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 1 三月 | OSM India - Monthly Online Mapathon | New Delhi, India |
| 3 三月 | Missing Maps London: (Online) Mapathon [eng] |
| 8 三月 | OSM Delhi Mapping Party No.27 (East Zone) | Delhi, India |
| 9 三月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 12 三月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 16 三月 | OpenStreetMap x Wikidata Taipei #86 | Chengnei, Taipei, Taiwan |
| 17 三月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 17 三月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 17 三月 | 198. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 三月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 21 三月 | OSM Mumbai Mapping Party No.8 (Western Line - North) | Vasai-Virar, Maharashtra, India |
| 23 三月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 24 三月 | Rencontre OpenStreetMap et Territoires | Plouzané, Brittany, France |
| 27 三月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 28–29 三月 | Chemnitzer Linux-Tage 2026 | Chemnitz, Saxony, Germany |
| 5 四月 | OSM India - Monthly Online Mapathon | New Delhi, India |
| 7 四月 | Missing Maps London: (Online) Mapathon [eng] |
| 12 四月 | OSM Delhi Mapping Party No.28 (Meerut) | Meerut, Uttar Pradesh, India |
| 13 四月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 13 四月 | OpenStreetMap x Wikidata Taipei #87 | Chengnei, Taipei, Taiwan |
| 14 四月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 18 四月 | OSM Mumbai Mapping Party No.9 (Central Line) | Mumbai, Maharashtra, India |
| 21 四月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 21 四月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 21 四月 | 199. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 21 四月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 27 四月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 28 四月 | Kieler Mapper*innentreffen | Kiel, Schleswig-Holstein, Germany |
| 29 四月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 30 四月–3 五月 | FOSSGIS-OSM-Communitytreffen im Linuxhotel | Essen, North Rhine-Westphalia, Germany |
| 3 五月 | OSM India - Monthly Online Mapathon | New Delhi, India |
| 5 五月 | Missing Maps London: (Online) Mapathon [eng] |
| 10 五月 | OSM Delhi Mapping Party No.29 (South Zone) | Delhi, India |
| 11 五月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 11 五月 | OpenStreetMap x Wikidata Taipei #88 | Chengnei, Taipei, Taiwan |
| 13 五月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 16 五月 | OSM Mumbai Mapping Party No.10 (Trans-Harbour Line - North) | Navi Mumbai, Maharashtra, India |
| 19 五月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 19 五月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 19 五月 | 200. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 19 五月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 五月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 27 五月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 2 六月 | Missing Maps London: (Online) Mapathon [eng] |
| 7 六月 | OSM India - Monthly Online Mapathon | New Delhi, India |
| 8 六月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 8 六月 | OpenStreetMap x Wikidata Taipei #89 | Chengnei, Taipei, Taiwan |
| 11 六月 | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 14 六月 | OSM Delhi Mapping Party No.30 (West Zone) | Delhi, India |
| 16 六月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 16 六月 | Réunion du groupe local de Lyon | Lyon, Auvergne-Rhône-Alpes, France |
| 16 六月 | 201. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 16 六月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 20 六月 | OSM Mumbai Mapping Party No.11 (Trans-Harbour Line - South) | Maharashtra, India |
| 22 六月 | Missing Maps : Mapathon en ligne - CartONG [fr] |
| 26–28 六月 | State of the Map Africa 2025 | Dar es-Salaam, Tanzania |
| 26 六月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 7 七月 | Missing Maps London: (Online) Mapathon [eng] |
| 13 七月 | OpenStreetMap x Wikidata Taipei #90 | Chengnei, Taipei, Taiwan |
| 21 七月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 21 七月 | 202. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 21 七月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 29 七月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 4 八月 | Missing Maps London: (Online) Mapathon [eng] |
| 10 八月 | OpenStreetMap x Wikidata Taipei #91 | Chengnei, Taipei, Taiwan |
| 18 八月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 18 八月 | 203. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 18 八月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 26 八月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 27 八月 | OpenStreetMap West Bengal Mapping Party + AnkushTheHero Day |
| 1 九月 | Missing Maps London: (Online) Mapathon [eng] |
| 7 九月 | OpenStreetMap x Wikidata Taipei #92 | Chengnei, Taipei, Taiwan |
| 15 九月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 15 九月 | 204. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15 九月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 九月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 5 十月 | OpenStreetMap x Wikidata Taipei #93 | Chengnei, Taipei, Taiwan |
| 6 十月 | Missing Maps London: (Online) Mapathon [eng] |
| 20 十月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 20 十月 | 205. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 20 十月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 28 十月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 3 十一月 | Missing Maps London: (Online) Mapathon [eng] |
| 9 十一月 | OpenStreetMap x Wikidata Taipei #94 | Chengnei, Taipei, Taiwan |
| 17 十一月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 17 十一月 | 206. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17 十一月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 25 十一月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 1 十二月 | Missing Maps London: (Online) Mapathon [eng] |
| 7 十二月 | OpenStreetMap x Wikidata Taipei #95 | Chengnei, Taipei, Taiwan |
| 15 十二月 | Missing Maps London: (Online) Mid-Month Mapathon [eng] |
| 15 十二月 | 207. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15 十二月 | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 18 十二月 | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
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