Niagara Falls Public Library may refer to:

Niagara Falls Public Library (New York), a public library system in the city of Niagara Falls, New York, United States Carnegie Library (Niagara Falls, New York), a former Carnegie library that once housed the Niagara Falls, New York Public Library. Niagara Falls Public Library (Ontario), a public library system in the city of Niagara Falls, Ontario, Canada