Zaikov/Zaykov, feminine:Zaikova/Zaykova is a Russian surname. Notable people with the surname include:
Lev Zaykov (1923–2002), Russian politician Potap Kuzmich Zaikov (died 1791), Russian navigator Tatyana Polnova née Zaykova (born 1979), Russian pole vaulter Sergey Zaikov (born 1987), Kazakhstani sprinter
See also