Hajnal is both a Hungarian surname and a female given name. It means 'dawn' in Hungarian, the first light of daybreak. Diminutive Hajnalka is also used as a female given name; it is also the Hungarian word for morning glory. Notable people with Hajnal either as a surname or given name:

Surname:

• András Hajnal (1931–2016), Hungarian mathematician
• János Hajnal (1913–2010), Hungarian-born artist and illustrator based in Italy
• John Hajnal (1926–2008), Hungarian-British mathematician and professor of statistics
• Tamás Hajnal (born 1981), Hungarian footballer

Given name:

• Hajnal Andréka (born 1947), Hungarian mathematician
• Hajnal Ban (born 1977), Australian lawyer and politician