Marais des Cygnes Valley High School is a fully accredited public high school located in Melvern, Kansas, in the Marais des Cygnes Valley USD 456 school district, serving students in grades 6-12.

Marais des Cygnes Valley has an enrollment of approximately 108 students.

The school also has a variety of organizations for the students to participate in.

The Trojans compete in the Lyon County League and are classified as either 2A or 1A, two of the lowest classifications in Kansas according to KSHSAA.

Marais des Cygnes Valley High School offers the following sports:[3]