Nedelchev (), female form Nedelcheva (), is a Bulgarian surname.
Notable people with this surname include: Deyan Nedelchev (born 1964), Bulgarian pop singer Mariya Gabriel (née Nedelcheva) (born 1979), Bulgarian politician Petya Nedelcheva (born 1983), Bulgarian badminton player Radi Nedelchev (1938–2022), Bulgarian artist Stefan Nedelchev (born 1996), Bulgarian footballer Yonko Nedelchev (born 1974), Bulgarian footballer