西营盘（英文：Sai Ying Pun） 是一座山城，位于香港香港岛西部，与半山区及中上环接壤，为香港最早期发展的住宅区及学校区。西营盘可说是香港历史最悠久的地方。香港开端口的百多年前，英军在占领角以西，即是西角(West Point)一带筑起军营，故此地有「西营盘」之名。西营盘是一个融汇香港历史、展现华洋杂处样貌的大众生活区。在地区行政上，西营盘属于中西区，位置为上环以西，石塘咀以东，般咸道以北，维多利亚港以南，即大约由嘉安街至威利麻街位置。近年，西营盘一带正续渐转营为高消费地区。

Sai Ying Pun is an area in Western District, in the northwestern part of Hong Kong Island, in Hong Kong. It is administratively part of Central and Western District.

In Chinese language (Cantonese dialect regarding the spoken version), Sai (西) means "west" and Ying Pun (營盤) means "camp", especially military camp. It was where the early British military stayed.