| Official Name: | Medby |
| Settlement Type: | Village |
| Pushpin Map: | Troms#Norway |
| Pushpin Label: | Medby |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Name: | Norway |
| Subdivision Name1: | Northern Norway |
| Subdivision Name2: | Troms |
| Subdivision Type3: | District |
| Subdivision Name3: | Midt-Troms |
| Subdivision Type4: | Municipality |
| Subdivision Name4: | Senja Municipality |
| Utc Offset1: | +01:00 |
| Utc Offset1 Dst: | +02:00 |
| Postal Code Type: | Post Code |
| Postal Code: | 9395 Kaldfarnes |
| Coordinates: | 69.2814°N 17.0589°W |
| Elevation M: | 13 |
| Elevation Footnotes: | [1] |
Medby is a village in Senja Municipality in Troms county, Norway. It is located along the Veidmannsfjorden on the southwestern part of the island of Senja. The village lies along a highway that connects the villages of Grunnfarnes and Sifjord. The Kaldfarnes area lies just to the west of Medby and Ånderdalen National Park lies about to the east of the village. Medby Chapel is located in this village.