移动浏览器，也叫做微型浏览器、迷你浏览器或无线互联网浏览器，是用于移动设备如移动电话或PDA的网页浏览器。移动浏览器为在手持设备的小型屏幕显示网页内容做了优化。移动浏览器软件必须很小并且高效以适应无线手持设备的低内存与低带宽。典型情况下，它们是简化了的网页浏览器，但到2006年，移动浏览器可以处理更多的最新技术如CSS 2.1、JavaScript及Ajax。专门为这些浏览器设计的网站被称为无线门户网站。

A mobile browser is a web browser designed for use on a mobile device such as a mobile phone or PDA. Mobile browsers are optimized so as to display Web content most effectively for small screens on portable devices. Mobile browser software must be small and efficient to accommodate the low memory capacity and low-bandwidth of wireless handheld devices. Typically they were stripped-down web browsers, but some more modern mobile browsers can handle more recent technologies like CSS 2.1, JavaScript, and Ajax.