Addy

Addy may refer to:


 * Addy (surname)
 * Addy, Washington, US, an unincorporated community
 * Addy Awards, advertising competition
 * Zack Addy, fictional character in the television series Bones
 * Addy Walker, a doll from the American Girl series
 * Adderall, a drug for ADHD and narcolepsy
 * Adamantite, an imaginary rock or mineral of impenetrable hardness