SIG was a pop band from Raisio, Finland, formed in 1978.

The lead singer of the band was Matti Inkinen.

The most famous songs from SIG are “Vuosisadan rakkaustarina“ (English: The lovestory of the century) and “Hyvää syntymäpäivää“ (English: Happy birthday).

The lead singer of SIG Matti Inkinen died in 2009.

This article about a Finnish band or other musical ensemble is a stub.