Ida Ten Eyck O'Keeffe (October 23, 1889 – September 27, 1961) was an American visual artist known for oil paintings, watercolors, and monotypes.

She then briefly worked as a nurse before earning her Master of Fine Arts degree from Columbia University.

Georgia gained more fame, partly because of a husband who worked as a well-known photographer and gallerist.

[11] O'Keeffe's first exhibition was in 1927 at the Opportunity Gallery in New York, where she was identified as Ida Ten Eyck, to avoid being compared to her sister, Georgia.

[12] She was featured in a solo exhibition at the Dallas Museum of Art entitled "Ida O'Keeffe: Escaping Georgia's Shadow".