The Cottage Grove Sentinel is a weekly newspaper serving the city of Cottage Grove, Oregon, United States. It was established in 1889 and is owned by News Media Corporation. News Media bought the Sentinel from Lee Enterprises in 2006. Lee had owned the paper after 1997. The Sentinel is published on Wednesdays and has a circulation of 3,331.
The Sentinel bought the competing Cottage Grove Leader in 1918. The Leader had previously combined with the Bohemia Nugget, which ran from 1889 to 1907.