Grammaticus

Grammaticus may refer to:

• Ammonius Grammaticus (4th century), ancient Greek grammarian
• Diomedes Grammaticus (4th century), Latin grammarian
• Grammaticus (poet) (6th century), Greek poet
• Saxo Grammaticus (circa 1150-1220), Danish medieval historian
• Virgilius Maro Grammaticus (7th century), early medieval Latin writer