The Librarian of the Year Award is an annual award made by Library Journal to "honor a professional librarian for outstanding achievement and accomplishments reflecting the loftiest service goals of the library profession".
[1] It was first awarded in 1988.
[2] Although it is often referred to as the "National Librarian of the Year Award", any working professional librarian from North America is eligible.
[1] Source: Librarian of the Year - Past Winners (Library Journal)