Elena Slough (née Rodenbaugh; 4 July 1889 – 5 October 2003) was an American supercentenarian, who was recognised as the oldest living person in the United States from the death of Mary Christian on 20 April 2003, until her own death, aged 114 years, 93 days, six months later. After her death, the oldest recognized person in the United States was Charlotte Benkner. Some sources date her birth to 1888, but the oldest records state that she was born in 1889.