Waveform Audio File Format（WAVE，又或者是因为扩展名而被大众所知的WAV），是微软与IBM公司所开发在个人电脑保存音频串流的编码格式，在Windows平台的应用软件受到广泛的支持，地位上类似于麦金塔电脑里的AIFF。 此格式属于资源交换文件格式(RIFF)的应用之一，通常会将采用脉冲编码调制的音频资保存在区块中。由于此音频格式未经过特别的压缩处理，所以在音质方面不会出现失真的情况，但文件的体积因而在众多音频格式中较为大。

Waveform Audio File Format (WAVE, or more commonly known as WAV due to its filename extension) (rarely, Audio for Windows) is a Microsoft and IBM audio file format standard for storing an audio bitstream on PCs. It is an application of the Resource Interchange File Format (RIFF) bitstream format method for storing data in "chunks", and thus is also close to the 8SVX and the AIFF format used on Amiga and Macintosh computers, respectively. It is the main format used on Windows systems for raw and typically uncompressed audio. The usual bitstream encoding is the linear pulse-code modulation (LPCM) format.