Quick answer
Helios is a boy name meaning "sun".
Pronunciation: Classical Greek /hɛ̌ː.li.os/; American English /ˈhi.li.ɑs/; British English /ˈhiː.li.ɒs/; English /ˈhiː.li.əs/.
Meaning and history
The name means "sun" in Greek. This was the name of the young Greek sun god, a Titan, who rode across the sky each day in a chariot pulled by four horses. His sister was the moon goddess Selene.
Notes and context
Usage: greek mythology | Ancient Greek: Ἥλιος