语言均一化（英语：dialect leveling；西班牙语：nivelación lingüística），指某地区某语系的各种方言间變得相似或均一的过程，通常由某种方言明显的淘汰促成，从而使该地区各语言间更易理解并更整齐划一。

基本概念 
从一方面看，在这过程中，可能导致理解上问题的不同语言表达形式得到简化，其变体也减少。这变化是渐进的，在其彻底完成之前，社会环境各变体共存。

从另一方面看，均一化同时还指具体单词的语法形态变化，旨在使各种形态趋于规则。

具体案例 
1561年确认马德里为西班牙首都后，全国各地的移民涌入（主要来自北部），并且均有其方言。马德里人和来自南部的移民在清齿擦音和浊齿擦音间产生分歧，而来自北部（巴斯克以及加利西亚地区）的移民已弃用浊咝音。这两种发音使语言變得均一。从音韵学角度出发，这两种发音难以分辨而且只有少部分人使用，过程完成后，三个浊咝音弃用。

參考文獻

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註釋

语言学