| St. Medardus | | — | — | — | |
| St. Medardus | | — | 12 Kirchstraße, Mehring, 54346 | — | |
| St. Mechthildis | | — | 9 Kirchgasse, Niederhausen, 55585 | — | |
| St. Mechthild | | — | — | — | |
| St. Mechtern | | — | 6 Mechternstraße, Köln, 50823 | — | |
| St. Mbaaga Tuzinde Kiwatule Catholic Parish | | — | — | — | |
| St. Maximinus | | — | — | — | |
| St. Maximinus | | — | 14 Kirchstraße, Waldbrunn (Westerwald), 65620 | — | |
| St. Maximin | | — | — | — | |
| St. Maximin | | — | — | — | |
| St. Maximin | | — | 19 Maximinstraße, Bettingen, 54646 | — | |
| St. Maximin | | — | 5 Kirchplatz, Lütz, 56290 | — | |
| St. Maximin | | — | 14 Am Kirchberg, Ettringen, 56729 | — | |
| St. Maximin | | — | 351 Emser Straße, Koblenz, 56076 | — | |
| St. Maximin | | — | 3 Kolpingstraße, Gappenach, 56294 | — | |
| St. Maximin | | — | 19 Maximinstraße, Kruchten, 54675 | — | |
| St. Maximin | | — | 15 Kirchweg, Rommersheim, 54597 | — | |
| St. Maximin | | — | 10 Dorfstraße, Wülfrath, 42489 | — | |
| St. Maximillian Kolbe Roman Catholic Church | | — | 4260 Cawthra Road, Mississauga | — | |
| St. Maximilian-Kolbe | | — | 59 Annette-Kolb-Straße, Nürnberg, 90471 | — | |
| St. Maximilian Maria Kolbe Church | | — | — | — | |
| St. Maximilian Kolbe Church, Mulavoor | | — | നിരപ്പ് റോഡ്, വാഴപ്പിള്ളി, മുവാറ്റുപുഴ, 686673 | — | |
| St. Maximilian Kolbe Catholic Mission | | — | — | — | |
| St. Maximilian Kolbe Catholic Church | | — | — | — | |
| St. Maximilian Kolbe | | — | — | — | |
| St. Maximilian Kolbe | | — | — | — | |
| St. Maximilian Kolbe | | — | — | — | |
| St. Maximilian Kolbe | | — | 364 Hörder Straße, Witten, 58454 | — | |
| St. Maximilian Kolbe | | — | 10 Im Brühl, Vörstetten, 79279 | — | |
| St. Maximilian Kolbe | | — | 3-5 Theodor-Heuss-Straße, Köln, 51149 | — | |
| St. Maximilian Kolbe | | — | 15 Maulbeerallee, Berlin, 13593 | — | |
| St. Maximilian Kolbe | | — | 18 Maximilian-Kolbe-Allee, München, 81739 | — | |
| St. Maximilian | | — | 75 Hauptstraße, Maxdorf, 67133 | — | |
| St. Maximilian | | — | 3, Kraiburg, 84559 | — | |
| St. Maximilian | | — | 10 Kirchbergstraße, Haidmühle, 94145 | — | |
| St. Maximilian | | — | 2 Franziskanergasse, Augsburg, 86152 | — | |
| St. Maximilian | | — | 152 Ludwigstraße, Königsmoos, 86669 | — | |
| St. Maximilian | | — | 15 Schulstraße, Düsseldorf, 40213 | — | |
| St. Maximilian | | — | — | — | |
| St. Maximilian | | — | 1 Auenstraße, München, 80469 | — | |
| St. Maxentius | | — | Bolton Road, Bolton, BL2 3EU | — | |
| St. Max | | — | 3 Alatseestraße, Füssen, 87629 | — | |
| St. Mawes Holy Well | | — | — | — | |
| St. Mauritz | | — | 22 Sankt-Mauritz-Freiheit, Münster, 48145 | — | |
| St. Mauritus | | — | — | — | |
| St. Mauritus | | — | — | — | |
| St. Mauritus | | — | 22 Dorfstraße, Ering, 94140 | — | |
| St. Mauritiuskirche | | — | — | — | |
| St. Mauritiuskirche | | — | Schlossplatz, Wiesentheid, 97353 | — | |
| St. Mauritius-Kirche | | — | 10 Kirchweg, Niedereschach, 78078 | — | |