2003 in anime

The events of 2003 in anime.

Accolades
At the Mainichi Film Awards, Tokyo Godfathers won the Animation Film Award and Winter Days won the Ōfuji Noburō Award. Internationally, Millennium Actress was nominated for the Annie Award for Best Animated Feature, the third consecutive year an anime was nominated for the award.

Releases
This list contains numerous notable entries of anime which debuted in 2003. It is not a complete list and represents popular works that debuted as TV, OVA and Movie releases. Web content, DVD specials, TV specials are not on this list.