daikon
Athena was a goddess that had six letters in her name. She was the goddess of wisdom and war.
An Italian pasta with six letters is rotini.
Rutabaga and cabbage
Ronald Reagan, but if you're looking for the same answer I am, that's not the one.
Athena
Saturn
rhesus
January, February, August {it has six letters exactly}, September, October, November, and December.
Assuming you mean exactly six letters - there are three English-language day names with six letters - Monday, Friday, Sunday.
The answer is Who Am I?
Hestia.