Novikau is a Belarusian surname. Notable people with the surname include:
Aliaksandr Novikau (born 1985), Belarusian rower Mikalai Novikau (born 1986), Belarusian weightlifter Siarhei Novikau (born 1982), Belarusian judoka Siarhei Novikau (born 1989), Belarusian boxer Yauheni Novikau (born 1996), Belarusian acrobatic gymnast