Participants
| István Hatvani | Hungary |
| Dávid Havasi | Hungary |
| Sally Hawkes | United Kingdom |
| Péter Hegyi | Hungary |
| Szilvia Hegyiné Szabó | Hungary |
| Maggy Heintz | France |
| Johannes Henn | Germany |
| Leonhard Herten | Germany |
| Rosemary Hindle | Belgium |
| Gyöngyi Hirschler | Hungary |
| Hans Hoffmann | Germany |
| András Homics | |
| Ting-Fu Hong | Taipei (Chinese) |
| Márk Honti | Hungary |
| Ferenc Hörcher | Hungary |
| Stéphane Horel | France |
| Réka Hornyák | Hungary |
| Anna Horváth | |
| Viola Horváth | |
| Kata Horváti | Hungary |
| Edna Hounsa | Benin |
| Kristijan Hristovski | North Macedonia, Republic of |
| Tomas Hromadka | Slovakia |
| Imre Hronszky | |
| Jan Hrušák | Czech Republic |
| Ferenc Hudecz | Hungary |
| László Hunyadi | Hungary |