Archidamus

Archidamus may refer to:
 * one of several kings of Sparta:
 * Archidamus I (c. 600–575 BC)
 * Archidamus II (469–427 BC)
 * Archidamus III (360–338 BC)
 * Archidamus IV (305–275 BC)
 * Archidamus V (228–227 BC)
 * Archidamus (speech), a speech of Isocrates written in the voice of Archidamus III
 * Archidamus (physician), an ancient Greek doctor quoted by Galen who lived in the 4th or 5th century BCE
 * Archedemus (disambiguation), a name commonly interchanged with Archidamus in the ancient world