Weird may refer to:

• "odd, uncanny", see surreal humour, mental confusion, freak, surprise (emotion)
• Wyrd, the Germanic concept of fate; Weird Sisters, the Germanic Fates
• "Weird" (Hilary Duff song)
• "Weird" (Hanson song)
• Weird (comics), a fictional DC Comics character
• "Weird Al" Yankovic, a famous American musician and parodist
• Weird number, a natural number that is abundant but not semiperfect
• Weird fiction, speculative literature written in the late 19th and early 20th century.