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