The Locus Award for Best Collection is one of the annual Locus Awards presented by the science fiction and fantasy magazine Locus. Awards presented in a given year are for works published in the previous calendar year. The award for Best Collection was originally presented as Best Reprint Anthology/Collection between 1972 and 1974, in conjunction with a Best Original Anthology award which evolved into the modern Best Anthology award.
With the 1975 awards the category was renamed Best Single Author Collection, becoming simply Best Collection in 1984.