Seelen is a Dutch surname. It is a variant of Ceelen, which itself derives from the given name Ceel. Ceel is a Dutch diminutive of Marcellus, a Roman family name that was originally a diminutive of Marcus. The name Marcus is believed to be derived from Mars, the Roman god of war. As a surname, Seelen is relatively rare. Variants include Ceelen and Zeelen. The root name Marcellus was borne by two popes: Pope Marcellus I (4th century) and Pope Marcellus II (16th century). Meaning: Variant of Ceelen, ultimately derived from Marcellus (little warrior) Origin: Dutch Type: Surname Usage Regions: Netherlands