信息设备（英语：Information Appliance，简称IA）泛指所有能够处理信息、信号、绘图、图像、动画、录像及声音的器材。现时信息设备有两个不同的定义：

两个不同的定义，可能与受众有关。根据香港教统局的定义，即使一个一年级的小学生，亦有能力指出哪些设备属于信息设备；但对于专业的用户来说，这个定义则流于空泛。

An information appliance (IA) is an appliance that is designed to easily perform a specific electronic function such as playing music, photography, or editing text.

Typical examples are smartphones and personal digital assistants (PDAs). Information appliances partially overlap in definition with, or are sometimes referred to as smart devices, embedded systems, mobile devices or wireless devices.