Millennial Choirs & Orchestras (MCO) is an American musical organization that was founded in 2007 for the purpose of teaching sacred and classical music, especially to its youth.

[1] The organization prioritizes in offering music performance education, with a focus on the works and styles of classical composers.

The organization's artistic staff also includes the following musical directors: Dr. Joni Jensen, Dr. Jodi Reed, Emily Cook, and Christina Bishop.

[3] MCO has seven locations: California (Orange County), Arizona (East Valley), Texas-Dallas, Texas-Austin, Utah (Wasatch Front), Idaho (Treasure Valley), and Missouri (Kansas City).

[5] The choirs of MCO consist of singers ranging from age four through adult.