Sinister is originally a Latin term for left or to the left (and by extension, left-handedness), and is used in heraldry to refer to the left of the bearer of the arms, and to the right by the viewer's eyes. It is often used to mean evil.

Sinister may also refer to:

• Bend sinister, heraldic charge
• Baton sinister, diminutive of the bend sinister

Sinister in comic books and literature:

• Mister Sinister, Marvel Comics supervillain
• Sinister Six, Marvel Comics supervillain group
• Sinister Twelve, Marvel Comics supervillain group
• Spider-Man: Return of the Sinister Six, comic-related video game
• Sinister Dexter, comic book
• Simon Bar Sinister, villain on the Underdog cartoon show
• Bend Sinister, novel by Vladimir Nabokov
• The Sinister Signpost, Hardy Boys novel by Franklin W. Dixon

Sinister in music:

• Sinister (band), from the Netherlands
• Sinister Footwear, orchestral ballet by Frank Zappa in three movements
• The Sinister Urge, album by Rob Zombie
• Sinister Slaughter, album by the band Macabre
• Bend Sinister, album by the band The Fall
• If You're Feeling Sinister, album by the band Belle & Sebastian
• If You're Feeling Sinister: Live at the Barbican, live album by Belle & Sebastian
• ''OG Sinister, a rapper from Los Angeles, CA

See also

• The Sinister Minister
• Synyster Gates, guitarist