Olius (Catalan pronunciation: [uˈliws]) is a municipality in the comarca of Solsonès in Catalonia, Spain. It is situated on the Cardener River above the reservoir of Sant Ponç. The village is served by the C-149 road between Solsona and Berga. The church of Sant Esteve d'Olius is a protected historico-artistic monument.

Subdivisions

The municipality of Olius is formed of four villages. Populations are given as of 2005:

• Brics (64)
• El Castellvell (38)
• Olius (118)
• El Pi de Sant Just (395)

The municipality surrounds Solsona except to the north and includes a small exclave within Solsona.

Demography

1900	1930	1950	1970	1986	2006
488	572	559	323	473	752