Marcel Peeters is a Belgian jazz arranger and composer active from the mid-20th century. Renowned for his sophisticated and often intricate charts, Peeters significantly contributed to the European big band sound. His work, characterized by rich harmonies and dynamic voicings, found favor with numerous ensembles and soloists across the continent. Peeters' arrangements were particularly influential in expanding the repertoire for larger jazz orchestras, showcasing a deep understanding of instrumental capabilities and a flair for innovative melodic and rhythmic development. His legacy is marked by a body of work that continues to be performed and studied by jazz musicians worldwide.