Talasius

thumb|alt=Painting of a young blond woman and young man sitting together|painting visualization of Talasius or Hymen (god)|Hymen by [[Théobald Chartran]]

Talasius is also known as Thalasius, Talassus and Talassio is a god of marriage in Roman mythology. His equivalent in Greek mythology is Hymen. His name was called out during marriages. The name was derived from Thalasus, which means "wool-basket". Later accounts state that he is friend of Romulus, and that he played a role in the rape of the Sabine women.