The events of 2004 in anime.
At the Mainichi Film Awards, The Place Promised in Our Early Days won the Animation Film Award and Mind Game won the à Âfuji Noburà  Award. Internationally, ' was nominated for the Annie Award for Best Animated Feature, the fourth consecutive year an anime was nominated for the award. Howl's Moving Castle was in competition for the Golden Lion at the 61st Venice International Film Festival.
This list contains numerous notable entries of anime which debuted in 2004. 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.
A list of anime that debuted in theaters between January 1 and December 31, 2004.
A list of anime television series that debuted between January 1 and December 31, 2004.
A list of original video animations that debuted between January 1 and December 31, 2004.