Hyginus, a crater on the Moon

Pope Hyginus, saint

Pseudo-Hyginus, author of De Munitionibus Castrorum formerly attributed to Hyginus Gromaticus

Hyginus Gromaticus, Roman surveyor

Gaius Julius Hyginus (c. 64 BC - 17 AD), Roman poet, author of Fabulae and De Astronomia; reputed author of Poeticon astronomicon

Hyginus of Cordova, bishop of present-day Cordoba, 4th-century opponent of Priscillian