AbiWord是一个以GNU通用公共许可证授权的免费文字处理软件，名称"AbiWord"是衍生自意谓开放的西班牙语单词"Abierto"；支持Linux、Mac OS X（PowerPC）、Microsoft Windows、ReactOS、BeOS与其他操作系统，但对每个操作系统的支持程度不同，如Linux版开发活跃；近期Mac OS X版不能在最新机器上原生运行，不能正确地显示字体；另有一个由SkyOS创作者分发基于GTK+（Linux）的非官方移植版本。

用家抱怨Abiword不稳定，且损毁文件。

AbiWord (/ˈæbiwɜːrd/) is a free and open source software word processor written in C++. Since version 3 it is based on GTK+ 3. The name "AbiWord" is derived from the root of the Spanish word "abierto", meaning "open".

AbiWord was originally started by SourceGear Corporation as the first part of a proposed AbiSuite but was adopted by open source developers after SourceGear changed its business focus and ceased development. It now runs on Linux, Microsoft Windows, ReactOS, Solaris, AmigaOS 4.0 (through its Cygnix X11 engine), MeeGo (on the Nokia N9 smartphone), Maemo (on the Nokia N810) QNX and other operating systems.