Opera是由Opera软件公司所开发的网页浏览器。最新版本可用于Microsoft Windows、OS X和Linux操作系统，并使用Blink排版引擎。而早期版本则使用Presto排版引擎。

Opera的姊妹浏览器 – Opera Mobile、Opera Mini和Opera Coast – 可运行于Android、iOS、Windows Phone、Symbian、Maemo、Bada、BlackBerry和Windows Mobile等多种操作系统的设备，而Opera Mini可运行于支持Java ME功能的设备。

Opera is a web browser developed by Opera Software. The latest version is available for Microsoft Windows, OS X, and Linux operating systems, and uses the Blink layout engine. An earlier version using the Presto layout engine is still available, and additionally runs on FreeBSD systems.