The term Attack Boost may refer to a number of topics in the Kingdom Hearts series:
- The item introduced in Kingdom Hearts, called Power Up, Power Boost, and Strength Boost.
- The ability introduced in Kingdom Hearts Birth by Sleep, called Attack Boost.
- The ability introduced in Kingdom Hearts Re:coded, called Attack Upgrade and Attack Gain.
- The ability introduced in Kingdom Hearts Union χ, called Strength Boost and Attack Boost, or one of its variants: