Lucassen is a surname of Dutch origin, often associated with notable individuals in various fields, including music, science, and sports. One prominent figure is Arjen Anthony Lucassen, a Dutch musician and composer known for his work in progressive rock and metal, particularly with the band Ayreon. In addition to music, the name Lucassen may refer to various businesses or institutions in the Netherlands. The name is relatively common in Dutch-speaking regions, and it can also be found in historical records, indicating its long-standing presence in the culture.