What does the name Sirius mean? The meaning of the name Sirius is Dog Star. The origin of the name Sirius is Greek. This is the culture in which the name originated, or in the case of a word, the language.
People who like the name Sirius also like: Remus
, Theodore Luna
Name Notes: Brightest star, also known as alpha Canis Majoris (Dogstar). Named after the Egyptian God, Osiris.