滚轮按钮、拨轮，通常指电脑鼠标表面的塑胶或橡胶转轮，它位于鼠标的左键与右键之间。

鼠标滚轮是由昆盈企业于1995年发明。

A scroll wheel (or mouse wheel) is a hard plastic or rubbery disc (the "wheel") on a computer mouse that is perpendicular to the mouse surface. It is normally located between the left and right mouse buttons.