Of Slavic and/or Arabic origin.
1) Of Slavic origin.
From the name Nadezhda, meaning “hope”. Nadezhda is a popular name in Russia, Ukraine, Serbia, Croatia, and Azerbaijan.
2) Of Arabic origin.
From the name Nadiyya, meaning “delicate”, “tender”.
Other forms of the name are Nadya, Nadja, Nadene, Nadina, Nadine, Nada, etc.
Nadia is ranked #17 in Poland, #93 in Portugal, #95 in Spain, and #358 in the U.S.A. (2016).
Famous bearers are Nadia Comaneci, Nadia Bjorlin, Nadia Davy, Nadia Giosia, Nadia Dandolo, Nadia Petrova, Nadia Turner, Nadia Alexander.