Serasan is a district in the Natuna Regency, Riau Islands, Indonesia.

The district is almost all Muslim, with 98.75% of the population practicing Islam, and the rest being Christian or Buddhist.

There is an operational post office in the village of Serasan with the postal code of 29781.

There are 4 cell towers in the district, and at least 1 communication service operators serves the villages.

[4] On March 6, 2023, landslides caused by heavy rains on the islands, killed 50 and left many missing.