| Official Name: | Granholmen |
| Pushpin Map: | Sweden Stockholm#Sweden#European Union |
| Subdivision Type: | Country |
| Subdivision Name: | Sweden |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Vaxholm Municipality |
| Subdivision Type2: | County |
| Subdivision Name2: | Stockholm County |
| Subdivision Type1: | Province |
| Subdivision Name1: | Uppland |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 59.3768°N 18.3021°W |
Granholmen, or Västra Granholmen, is an island in the Stockholm archipelago in Sweden. It is situated in the waterway to the south of Vaxholm and Karlsudd and north of . Administratively, it is in Vaxholm Municipality and Stockholm County.[1]
Granholmen has no road connection to the mainland or other islands. It is served throughout the year by passenger ships of the Waxholmsbolaget, which call at a pier at the eastern end of the island, providing a connection to Vaxholm town and Stockholm city.[1] [2] [3]
The neighbouring island is Edlunda, which was previously called Östra Granholmen. The two islands were originally named after Erik and Carl Fredrik Granholm, who bought them in the 1860s.[1] [4]