| Czech Republic | Matěj |
| Denmark | Mattias |
| Estonia | Madi, Madis, Maido, Maidu, Mait, Mati, Matis, Mats, Matti, Mattias |
| Finland | Matias, Matti |
| Finland-Swedish | Mats, Mattias |
| France | Modeste |
| Hungary | Elemér |
| Latvia | Diāna, Dina, Dins |
| Lithuania | Demetrija, Gedmantas, Goda, Matas, Motiejus |
| Norway | Mats, Mattias, Mattis |
| Poland | Bogurad, Bogusz, Boguta, Maciej, Piotr |
| Sweden | Mats, Mattias |