Mesa Public Library is the Los Alamos branch of the Los Alamos County Library System in New Mexico, United States.

The library collection has more than 160,000 items which include books, CDs, DVDs, original paintings, and material in several foreign languages.

The Southwest Collection contains over 3,400 fiction and nonfiction books about New Mexico and Arizona.

In 1985[1] a branch library opened in White Rock.

In 1994 the Los Alamos branch moved into its current building designed by architect Antoine Predock[1] and located west of Fuller Lodge.