The Linnaistensuo Mire is a nature reserve in Lahti, Finland.

[1] Linnaistensuo is a typical southern Finnish raised bog.

[1] It is located in the Kujala area near Linnaistenmäki, 7 kilometers from the city centre of Lahti.

[1] It contains 15 different natural mire types and the average peat in Linnaistensuo is 2.9 metres deep.

[2] Linnaistensuo was accepted into the European Union's Natura 2000 network in 1998 as a representative sample of the raised bog nature in southern Finland.