Ada Ethel van Natta (30 November 1879?/1880 – 14 November 1992) was an American woman notable for her longevity. She was born as Ada van Natta, the 16th of 17 children born to Jacob and Sarah Bevill Van Natta in Gillespie, Macoupin, Illinois on 30 November 1879/1880. She never married nor had any children and spent her entire life in Illinois. Ada Van Natta died in Gillespie, Macoupin, Illinois on 14 November 1992, aged 111/112 years, 350 days.