| Merthyr Tudful to Giovinazzo | 1,194.31 mi (1,922.05 km) |
| Merthyr Tudful to Giugliano in Campania | 1,117.53 mi (1,798.49 km) |
| Merthyr Tudful to Giulianova | 1,018.73 mi (1,639.48 km) |
| Merthyr Tudful to Giussano | 708.29 mi (1,139.88 km) |
| Merthyr Tudful to Goito | 781.97 mi (1,258.45 km) |
| Merthyr Tudful to Gonzaga | 800.99 mi (1,289.06 km) |
| Merthyr Tudful to Gorgonzola | 722.52 mi (1,162.79 km) |
| Merthyr Tudful to Gorizia | 868.01 mi (1,396.92 km) |
| Merthyr Tudful to Gragnano | 1,140.85 mi (1,836.02 km) |
| Merthyr Tudful to Grammichele | 1,332.90 mi (2,145.09 km) |
| Merthyr Tudful to Granarolo del l'Emilia | 842.57 mi (1,355.99 km) |
| Merthyr Tudful to Gravina in Puglia | 1,202.98 mi (1,936.02 km) |
| Merthyr Tudful to Grezzana | 783.46 mi (1,260.86 km) |
| Merthyr Tudful to Gricignano d'Aversa | 1,113.62 mi (1,792.19 km) |
| Merthyr Tudful to Grosseto | 916.55 mi (1,475.04 km) |
