Jimmie O. Keenan is a retired major general of the United States Army.

She completed a variety of assignments such as nursing at domestic and overseas facilities of the United States Army, and eventually rising to the post of Commander, Evans Army Community Hospital in Fort Carson, Colorado.

Keenan is a Distinguished Military Graduate from Henderson State University with a Baccalaureate of Nursing.

Keenan was the General Douglas MacArthur Leadership Award winner for the Health Services Command in 1988, a Regional Finalist, White House Fellowship Program in 1992, and an Army Congressional Fellow for FY 2001.

She is a member of the Order of Military Medical Merit and a Fellow in the American College of Healthcare Executives.