Nanna Ditzel (October 6, 1923 - June 17, 2005) was a Danish designer.

She was educated as a carpenter at Richards Skole and studied at the Danish School of Arts and Crafts where she graduated in 1946. Here she met her first husband, the architect Jørgen Ditzel with whom she collaborated closely until his death in 1961. Her works include furniture, jewelry, tableware and textiles. She also made jewelry designs for Georg Jensen and furniture for Frederica. Nanna Ditzel was known for designing furniture suitable for lying down, she used bright colours and she was very much inspired by nature.^{[citation needed]}