Siljan may refer to:
People Siljan Avramovski, a Macedonian police official and former Minister of Internal Affairs
Places Norway Siljan Municipality, a municipality in Telemark county, Norway Siljan (village), a village in Siljan Municipality in Telemark county, Norway Siljan Church, a church in Siljan Municipality in Telemark county, Norway Siljan prestegjeld, a former geographic subdivision of the Church of Norway in Telemark county, Norway
Sweden Siljan (lake), a lake in Dalarna, Sweden Siljan Ring, a prehistoric impact crater in Dalarna, central Sweden