Zajac is a common Slavic name, meaning “hare”. Variants include Zaek, Zając, Zajec, Zajić, Zajíc, Zayak, Zayats, and Zayets. A related Russian surname is Zaytsev. Notable people with the surname include:
Andrzej Zając (born 1956), Polish ParalympianBogdan Zając (born 1972), Polish football defenderBojan Zajić (born 1980), Serbian football playerDarcy Zajac (born 1986), Canadian professional ice hockey playerElaine Zayak (born 1965), American figure skaterIhor S. Zajac, discoverer of Zajacite-(Ce), a rare radioactive fluoride mineral in QuebecJack Zajac (born 1929), American artistJan Zajíc (1950-1969), Czech student and political protesterJoanna Zając (born 1990), Polish snowboarderJózef Zając (1891–1963), Polish general and pilotLesław Zając, Polish runnerMarcin Zając (born 1975), Polish football midfielderMarek Zając (born 1973), Polish football defenderOleksandr Zayets (1962-2007), Soviet/Ukrainian football playerRichard Zajac (born 1976), Slovak football playerRudolf Zajac (born 1951), former Minister of Health of SlovakiaSerhiy Zayets (born 1969), Ukrainian football playerStanisław Zając (born 1949), Polish politicianTravis Zajac (born 1985), Canadian ice hockey playerVadym Zayats (born 1974), Ukrainian football playerVelimir Zajec (born 1956), Croatian football playerZbyněk Zajíc (1376-1411), Czech nobleman