436 may refer to:

• 436 BC
• 436 AD
• 436 Patricia, a large asteroid
• Gliese 436, a red dwarf star with at least one known planet
• Population 436, a 2006 film

• Pirate studies
• Pirates, Vikings and Knights
• Pirates With Attitude
• Pirates With Attitudes
• Pirate's World
• Pirate Tapes
• Pirate taxi
• Pirate TV (film)
• Pirate Utopias (77 Lost Scrolls)
• Pirate Videos: Daylight Robbery
• Pirate Wars
• Pirate wolf spider
• Piratic Flycatcher
• Pirati Chomutov
• Piratim
• Piratini-class patrol boat
• Piratininga (genus)
• Piratiyur
• Piratska stranka slovenije
• Piratskattens hemlighet
• Pirattiyur
• Piratula
• Piratula hurkai
• Piraund
• Piraus