The 2019 GK Championships were held on May 11 in Mosfellsbaer, Iceland.
Senior All-Around Results
| Rank | Athlete | Club | FX | PH | SR | VT | PB | HB | AA |
| 1 | Gudjon Hildarson | Gerpla | 12.600 | 7.100 | 10.966 | 13.866 | 11.300 | 11.066 | 66.898 |
| 2 | Arnor Masson | Gerpla | 12.200 | 10.433 | 9.633 | 12.833 | 10.733 | 9.833 | 65.665 |
| 3 | Arnthor Jonasson | Gerpla | —— | 11.800 | —— | —— | —— | —— | 11.800 |
Junior All-Around Results
| Rank | Athlete | Club | FX | PH | SR | VT | PB | HB | AA |
| 1 | Jonas Thorisson | Armann | 12.800 | 11.700 | 11.800 | 13.933 | 12.533 | 11.833 | 74.599 |
| 2 | Atli Valgeirsson | Armann | 11.933 | 11.400 | 10.800 | 12.866 | 11.833 | 11.433 | 70.265 |
| 3 | Martin Gudmundsson | Gerpla | 11.700 | 10.633 | 11.333 | 14.166 | 12.333 | 9.833 | 69.998 |
| 4 | Agust Davidsson | Gerpla | 12.033 | 9.333 | 12.000 | 12.833 | 11.966 | 11.366 | 69.531 |
| 5 | Breki Snorrason | Björk | 10.833 | 10.566 | 11.666 | 12.366 | 11.933 | 11.233 | 68.597 |
| 6 | Dagur Olafsson | Gerpla | 11.333 | 11.800 | 10.633 | 11.700 | 11.200 | 11.900 | 68.566 |
| 7 | Valdimar Matthiasson | Gerpla | 11.966 | 5.033 | 10.533 | 11.400 | 10.533 | 7.266 | 56.731 |
| 8 | Ivan Asgeirsson | Gerpla | 11.500 | 3.833 | 8.300 | 10.366 | 4.533 | 10.100 | 48.632 |
| 9 | Atli Björnsson | Keflavik | —— | —— | 8.633 | 10.400 | 9.166 | 5.200 | 33.399 |
| 10 | Aron Beck | Armann | 11.400 | —— | 11.633 | —— | —— | —— | 23.033 |
| 11 | Sigurdur Stefansson | Fjölnir | —— | —— | —— | 11.133 | —— | 10.566 | 21.699 |
The Gymternet 