Assyrian or Assyriac may refer to:

• Assyrian people, an indigenous ethnic group of Mesopotamia.
• Assyria, a major Mesopotamian kingdom and empire.
  • Early Assyrian Period
  • Old Assyrian Period
  • Middle Assyrian Empire
  • Neo-Assyrian Empire
  • Post-imperial Assyria
• Assyrian language (disambiguation)
• Assyrian Church (disambiguation)
• SS Assyrian, several cargo ships
• The Assyrian (novel), a novel by Nicholas Guild
• The Assyrian (horse), winner of the 1883 Melbourne Cup

• Assyria (disambiguation)
• Syriac (disambiguation)
• Assyrian homeland, a geographic and cultural region in Northern Mesopotamia traditionally inhabited by Assyrian people

• Syriac language, a dialect of Middle Aramaic that is the minority language of Syrian Christians
• Upper Mesopotamia
• Church of the East (disambiguation)