Nadja is a female name, that is used predominantly throughout the Mediterranean region, and the Arab world. Its origins are in the Arabic languages. The Serbian and Montenegrin spelling is Nađa.
Notable people with the name include:
- Nadja Auermann, German model and actress
- Nadja Benaissa, German singer, member of No Angels
- Nadja Bender, Danish fashion model
- Nadja Bernhard [de] (born 1975), Austrian news presenter
- Nađa Đurđevac (born 2002), Montenegrin football player
- Nađa Higl, Serbian swimmer
- Nađa Kadović (born 2003), Montenegrin handball player
- Nadja Käther, German track and field athlete
- Nadja Malacrida, pen-name of Louisa Nadia Green (1896—1934), British poet
- Nađa Ninković, Serbian volleyball player
- Nadja Peulen, German bass guitarist for Coal Chamber
- Nadja Salerno-Sonnenberg, US violinist
- Nadja Sieger (*1967), Swiss comedian
- Nađa Stanović (born 1999), Montenegrin football player
Fictional characters: