在计算机技术中，名称服务器（英语：name server或nameserver）是指提供域名服务协议的进程或服务器。它可以将“人类可识别”的标识符，映射为系统内部通常为数字形式的标识码。域名系统（DNS）服务器是最著名的名称服务器：域名是互联网两大主要命名空间之一。

A name server is a computer hardware or software server that implements a network service for providing responses to queries against a directory service. It translates an often humanly-meaningful, text-based identifier to a system-internal, often numeric identification or addressing component. This service is performed by the server in response to a service protocol request.