Santahamina

Location of Santahamina within Helsinki
Hevossalmi bridge and road to Santahamina

Santahamina (Swedish: Sandhamn) is an island and neighbourhood of Eastern Helsinki, Finland. At present it is a military base housing the Guard Jaeger Regiment, making access restricted. The Finnish National Defence University (NDU) is also located on the island.

Santahamina housed before 2007 a mediumwave broadcasting station used by Yle for broadcasting on 558 kHz with 100 kW.