Sotonera Lacus is one of a number of hydrocarbon lakes found on Saturn's largest moon, Titan.

[1] Sotonera Lacus is located near the north pole of Titan, centered on latitude 76.75°N and longitude 17.49°W, and measures 63 km in length.

[1][note 1] It is situated in a north polar region where the majority of Titan's large lakes are found.

The lake is composed of liquid methane and ethane,[2] and was detected by the space probe Cassini.

It was named in 2007 after Lake Sotonera in Spain.