Godzilla 2000: Millennium (ゴジラ2000 ミレニアム, Gojira Nisen: Mireniamu) is a 1999 Japanese kaiju film directed by Takao Okawara, with special effects by Kenji Suzuki. Distributed by Toho and produced under their subsidiary Toho Pictures, it is the 24th film in the Godzilla franchise, Toho's 23rd Godzilla film, and the first film in the franchise's Millennium period. The film stars Takehiro Murata, Hiroshi Abe, Naomi Nishida, Mayu Suzuki and Shiro Sano. The film, along with the subsequent Godzilla films in the franchise's Millennium era, ignores continuity established by any previous films with the sole exception of the original 1954 film.

Godzilla 2000: Millennium was released in Japan on December 11, 1999, and in North America by TriStar Pictures on August 18, 2000, under the title Godzilla 2000. It received mixed reviews from critics and performed below TriStar's expectations, grossing just over $10 million at the North American box office. It was the last film in the franchise to receive a wide North American theatrical release until Godzilla Minus One (2023), though Shin Godzilla (2016) was given a limited release.

Toho released a follow-up, Godzilla vs. Megaguirus, the following year.