西原（越南语：Tây Nguyên），有时又称为中部高原（Cao nguyên Trung bộ）或中央高地，是越南8大地区之一，包括多乐省、得农省、嘉莱省、昆嵩省和林同省。

越南共和国时期称为 Cao nguyên Trung phần （中份高原）。

这个地区住了很多越南的少数民族，如说南岛语系的嘉莱族、埃地族，和说孟-高棉语言的巴纳人和豪尔人等。时有争取蒙塔格纳德（法语：Montagnard）独立的运动。

该地区拥有不少濒危物种，如印度水牛、印度野牛、爪哇野牛、亚洲象、**等。

Tây Nguyên, translated as Western Highlands and sometimes also called Central Highlands, is one of the regions of Vietnam. It contains the provinces of Đắk Lắk, Đắk Nông, Gia Lai, Kon Tum, Lâm Đồng.

This region is sometimes referred to as Cao nguyên Trung bộ (literally "Midland Highlands"), and was referred to during the Republic of Vietnam as Cao nguyên Trung phần (literally "Central Highlands").