Louise Siversen (born 29 May 1960 in Melbourne, Australia) is an actress.
Her TV credits include The Flying Doctors, Sugar and Spice, BackBerner, MDA and All Saints, Janus, Prisoner, Rush, Special Squad.
But Siversen will always be best known for her portrayal of nasty Lou Kelly in the Network Ten series Prisoner. Siversen had done several bit-parts in the series and at the time the character of Lou was devised had been a regular extra for several months, playing one of the prisoners. Siversen auditioned, and got the part. Kelly quickly became one of the main characters of the series and had a run from 1983-1986.