Hazelwood West High School is a public high school located in Hazelwood, Missouri.

Hazelwood West High School began in 1974, with the first graduating class in 1975.

Due to overcrowding of Hazelwood Senior High School (now known as Hazelwood Central), students attended classes on split shift in afternoons.

A greatly expanded building opened as a six-year facility in the fall of 1975, housing students in grades seven through twelve.

In 2005, two new building additions were added, a band room near the main entrance and a three-story classroom wing in the rear of the former middle school section.