Charles Amos Cogswell (January 3, 1844 – April 24, 1908) was an American politician and attorney from the state of Oregon.
He served in the Union Army during the American Civil War.
After the war, he moved to Lakeview, Oregon, where he became the area's first practicing attorney and was co-founder of the Lake County Examiner.
Cogswell was elected to two four-year terms in the Oregon State Senate.
During his tenure in the legislature, he was known as a conservative Democrat; however, near the end of his second term in the senate, he became a Republican.
After retiring from his law practice, Cogswell moved to Portland, Oregon, where he was active in business and engaged in public service.