A list of the first published works in series which won the Hugo Award for Best Series. A series must have at least three published works of at least 240,000 words, with at least one work published in English in the previous calendar year.

This list also includes winners of the All-Time Series award and Retro-Hugo for Best Series award.

The win for the Children of Time series has been disavowed by the author, Adrian Tchaikovsky, due to the balloting controversies surrounding the 2023 Hugo awards.