| 12th August | Missing Maps Online Mapathon von Ärzte ohne Grenzen |
| 12th August | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13th August | UN Mappers Mappy Hour |
| 15th–16th August | OSM auf der FrOSCon 2026 in Sankt Augustin | Sankt Augustin, North Rhine-Westphalia, Germany |
| 15th–16th August | OSM auf der Maker Faire Hannover 2026 | Hanover, Lower Saxony, Germany |
| 16th August | Kartenwerkstatt Oschatz | Oschatz, Saxony, Germany |
| 16th August | OSM Chennai Mapping Party – Tambaram Market |
| 18th August | Braunschweiger Mappertreffen im Stratum 0 Hackerspace | Brunswick, Lower Saxony, Germany |
| 18th August | 3. OSM Stammtisch Magdeburg | Magdeburg, Saxony-Anhalt, Germany |
| 18th August | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 18th August | 203. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 18th August | East Midlands pub meet-up | Derby, England, United Kingdom |
| 18th August | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 18th August | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 19th August | Stammtisch Karlsruhe | Karlsruhe, Baden-Württemberg, Germany |
| 20th August | Maptime Amsterdam: 2026 Summertime Maptime | Amsterdam, North Holland, Netherlands |
| 21st August | Potsdamer Mappertreffen × 218. OSM-Stammtisch Berlin-Brandenburg | Potsdam, Brandenburg, Germany |
| 24th August | Bremer Mappertreffen | Bremen, Bremen, Germany |
| 25th August | OSM-Verkehrswende #78 | Berlin, Germany |
| 26th August | 79. Wiener OSM-Stammtisch | Vienna, Austria |
| 26th August | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 26th August | Würzburger OSM-Treffen | Würzburg, Bavaria, Germany |
| 27th August | OpenStreetMap West Bengal Mapping Party + AnkushTheHero Day |
| 28th–30th August | State of the Map 2026 | Champs-sur-Marne, Ile-de-France, France |
| 28th August | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 31st August | OSM-Stammtisch Hannover | Hanover, Lower Saxony, Germany |
| 31st August | OSM-Stammtisch Hannover | Hanover, Lower Saxony, Germany |
| 31st August | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 1st September | OSM-Stammtisch Münster | Münster, North Rhine-Westphalia, Germany |
| 1st September | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 1st September | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 2nd September | SOTM/2 CZ | Prague, Czechia |
| 2nd September | OSM Indoor Meetup |
| 2nd September | OSM Indoor Meetup |
| 2nd September | Stuttgarter OpenStreetMap-Treffen | Stuttgart, Baden-Württemberg, Germany |
| 3rd September | Angers Rencontre mensuelle OpenStreetMap | Angers, Pays de la Loire, France |
| 5th September | OSM India - Monthly Online Mapathon | New Delhi, India |
| 7th September | OpenStreetMap x Wikidata Taipei #92 | Chengnei, Taipei, Taiwan |
| 8th September | Braunschweiger Mappertreffen im Stratum 0 Hackerspace | Brunswick, Lower Saxony, Germany |
| 8th September | Hamburger Mappertreffen | Hamburg, Germany |
| 8th September | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 10th September | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13th September | OSMmapperCPH | Copenhagen, Capital Region of Denmark, Denmark |
| 13th September | OSM Delhi Mapping Party No.32 (Outside Delhi) | New Delhi, India |
| 14th September | CartONG : Mapathons en ligne 2026-2027 |
| 15th September | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 15th September | 22. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 15th September | 204. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15th September | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 15th September | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 16th September | Map The Climate! Ein Mapathon | St. Gallen, St. Gallen, Switzerland |
| 16th September | OSM Stammtisch Köln | Cologne, North Rhine-Westphalia, Germany |
| 22nd September | East Midlands pub meet-up | Derby, England, United Kingdom |
| 24th September | OSM-Treffen Freiburg/Br. | Freiburg im Breisgau, Baden-Württemberg, Germany |
| 25th September | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 26th–27th September | Karlsruhe Hack Weekend September 2026 | Karlsruhe, Baden-Württemberg, Germany |
| 26th September | Sudan Solidarity Series |
| 28th September | CartONG : Mapathons en ligne 2026-2027 |
| 30th September | Rhein-Neckar OSM Treffen | Mannheim, Baden-Württemberg, Germany |
| 1st October | Angers Rencontre mensuelle OpenStreetMap | Angers, Pays de la Loire, France |
| 2nd–4th October | FOSSGIS-OSM-Communitytreffen Nr. 26 im Linuxhotel | Essen, North Rhine-Westphalia, Germany |
| 3rd October | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 3rd October | OSM India - Monthly Online Mapathon | New Delhi, India |
| 5th October | OpenStreetMap x Wikidata Taipei #93 | Chengnei, Taipei, Taiwan |
| 6th October | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 6th October | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 11th October | OSM Delhi Mapping Party No.33 (East Zone) | New Delhi, India |
| 12th October | CartONG : Mapathons en ligne 2026-2027 |
| 13th October | Hamburger Mappertreffen | Hamburg, Germany |
| 13th October | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13th October | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 20th October | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 20th October | 205. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 20th October | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 20th October | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 26th October | CartONG : Mapathons en ligne 2026-2027 |
| 26th October | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 27th–29th October | State of the Map LATAM 2026 | Mexico City, Mexico City, Mexico |
| 27th October | 80. Wiener OSM-Stammtisch | Vienna, Austria |
| 28th October | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 3rd November | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 7th November | Maker Days Salzburg | Salzburg, Salzburg, Austria |
| 7th November | OSM India - Monthly Online Mapathon | New Delhi, India |
| 8th November | OSM Delhi Mapping Party No.34 (South Zone) | New Delhi, India |
| 9th November | CartONG : Mapathons en ligne 2026-2027 |
| 9th November | OpenStreetMap x Wikidata Taipei #94 | Chengnei, Taipei, Taiwan |
| 10th November | Hamburger Mappertreffen | Hamburg, Germany |
| 10th November | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 11th November | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 17th November | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 17th November | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 17th November | 206. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 17th November | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 23rd November | CartONG : Mapathons en ligne 2026-2027 |
| 25th November | Rhein-Neckar OSM Treffen | Mannheim, Baden-Württemberg, Germany |
| 25th November | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 1st December | OSM-Treffpunkt | Salzburg, Salzburg, Austria |
| 1st December | Missing Maps London Mapathon Beginner Friendly (with Training) (Online) [eng] |
| 5th December | OSM India - Monthly Online Mapathon | New Delhi, India |
| 7th December | OpenStreetMap x Wikidata Taipei #95 | Chengnei, Taipei, Taiwan |
| 8th December | Hamburger Mappertreffen | Hamburg, Germany |
| 8th December | OSM-Stammtisch Ulm/Neu-Ulm | Neu-Ulm, Bavaria, Germany |
| 9th December | 23. Österreichischer OSM-Stammtisch (online) | Stainach-Pürgg, Styria, Austria |
| 10th December | Münchner OSM-Treffen | Munich, Bavaria, Germany |
| 13th December | OSM Delhi Mapping Party No.35 (Outside Delhi) | New Delhi, India |
| 13th December | Essen OSM-Treffen | Essen, North Rhine-Westphalia, Germany |
| 14th December | CartONG : Mapathons en ligne 2026-2027 |
| 15th December | Missing Maps London Mid-Month for Advanced Mappers (no training provided) (Online) [eng] |
| 15th December | 207. OSM-Stammtisch Bonn | Bonn, North Rhine-Westphalia, Germany |
| 15th December | OSM-Stammtisch Chemnitz | Chemnitz, Saxony, Germany |
| 15th December | Lüneburger Mappertreffen (online) | Lüneburg, Lower Saxony, Germany |
| 18th December | Düsseldorfer OpenStreetMap-Treffen (online) | Dusseldorf, North Rhine-Westphalia, Germany |
| 11th January | CartONG : Mapathons en ligne 2026-2027 |
| 25th January | CartONG : Mapathons en ligne 2026-2027 |
| 25th January | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 8th February | CartONG : Mapathons en ligne 2026-2027 |
| 22nd February | CartONG : Mapathons en ligne 2026-2027 |
| 8th March | CartONG : Mapathons en ligne 2026-2027 |
| 22nd March | CartONG : Mapathons en ligne 2026-2027 |
| 29th March | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 12th April | CartONG : Mapathons en ligne 2026-2027 |
| 26th April | CartONG : Mapathons en ligne 2026-2027 |
| 10th May | CartONG : Mapathons en ligne 2026-2027 |
| 24th May | CartONG : Mapathons en ligne 2026-2027 |
| 31st May | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 14th June | CartONG : Mapathons en ligne 2026-2027 |
| 28th June | CartONG : Mapathons en ligne 2026-2027 |
| 26th July | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 27th September | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
| 29th November | Rhein-Neckar OSM Treffen | Heidelberg, Baden-Württemberg, Germany |
Add your event to OpenStreetMap Calendar