The 2018 GK Championships were held on May 5 in Reykjavik, Iceland.
Senior All-Around Results
| Rank | Athlete | Club | FX | PH | SR | VT | PB | HB | AA |
| 1 | Eythor Baldursson | Gerpla | 12.500 | 10.900 | 12.766 | 13.733 | 11.900 | 11.600 | 73.399 |
| 2 | Stefan Ingvarsson | Björk | 11.200 | 10.600 | 12.233 | 12.666 | 12.366 | 10.033 | 69.098 |
| 3 | Atli Jonsson | Gerpla | 12.300 | 10.166 | 11.300 | 11.866 | 11.433 | 11.266 | 68.331 |
| 4 | Arnor Masson | Gerpla | 10.433 | 10.266 | 10.266 | 12.700 | 10.166 | 10.000 | 63.831 |
| 5 | Gudjon Hildarson | Gerpla | 10.733 | 9.266 | 9.466 | 12.933 | 11.166 | 10.133 | 63.697 |
| 6 | Arnthor Jonasson | Gerpla | —— | 12.133 | —— | —— | —— | —— | 12.133 |
| 7 | Viktor Tryggvason | Gerpla | 9.066 | —— | —— | —— | —— | —— | 9.066 |
Junior All-Around Results
| Rank | Athlete | Club | FX | PH | SR | VT | PB | HB | AA |
| 1 | Martin Gudmundsson | Gerpla | 13.133 | 11.666 | 11.700 | 13.666 | 12.400 | 11.166 | 73.731 |
| 2 | Jonas Thorisson | Armann | 11.566 | 9.400 | 11.100 | 13.233 | 12.033 | 11.100 | 68.432 |
| 3 | Breki Snorrason | Björk | 9.466 | 11.066 | 12.200 | 12.133 | 10.833 | 11.166 | 66.864 |
| 4 | Agust Davidsson | Gerpla | 10.800 | 8.466 | 11.966 | 11.833 | 12.333 | 10.066 | 65.464 |
| 5 | Valdimar Matthiasson | Gerpla | 11.300 | 7.433 | 5.800 | 10.800 | 10.033 | 7.200 | 52.566 |
| 6 | Atli Björnsson | Keflavik | 8.700 | —— | 10.066 | 10.000 | 8.666 | 4.766 | 42.198 |
| 7 | Ivan Asgeirsson | Gerpla | 10.033 | 0.766 | 4.866 | 11.800 | 4.100 | 6.100 | 37.665 |
| 8 | Orri Andresson | Björk | 10.666 | 4.300 | 10.266 | —— | —— | —— | 25.232 |
The Gymternet 