Trillian Astra, character in "The Hitchhiker's Guide to the Galaxy"
Astra, Imperial Guardian in the "X-men" comics
Astra, supervillain in the "X-Men" comics
"Astra," album by British rock band Asia
Astra, character in Japanese TV show "Ultraman Leo"
Opel Astra, car
Astra Orders, daughter of Kenna Orders, America's sister in the Selection Series by KieraCass.