Olivia Nye Simpson Poffenbarger (known as Livia) (March 1, 1862 – October 27, 1937) was an American newspaper owner/editor, historian, social activist, civic leader, and Republican politician in West Virginia.

She chaired an advisory committee on a bond issue to improve state roads, speaking statewide for its adoption.

Her view has received little support from historians, but her efforts led to the creation of Tu-Endie-Wei State Park and the erection of a monument on the battle site.

She served as advisor in the party's 1912 convention, was a member of the 1920-24 national Republican advisory council of 100, and a state elector at large in 1924.

[6] In 1894, she married George Poffenbarger, a prominent lawyer who later served many years on the West Virginia Supreme Court of Appeals; they had two sons, Nathan and Perry.