The National UFO Historical Records Center (NUFOHRC) is a 501(c)(3) nonprofit archive in Rio Rancho, New Mexico, that collects and preserves the records of civilian UFO research. Its stated mission is "to collect, preserve, and provide historical UFO materials to the general public and interested parties." The center was founded by David Marler, who runs it as executive director, and it describes its holdings as the largest collection of UFO records in the United States. In 2026 those holdings became the subject of a proposed Pentagon records subscription.

The archive began as Marler's private library, kept in an extension of his home. Its institutional core arrived in November 2020, when Mark Rodeghier, director of the J. Allen Hynek Center for UFO Studies, transferred that center's files to Marler, among them the personal files of the astronomer J. Allen Hynek and copies of Project Blue Book case files he had owned. Marler announced the center in 2022 as an effort to centralize and digitize the country's UFO records. In October 2024 it opened two buildings in Rio Rancho under a five-year agreement with Rio Rancho Public Schools, with an option to renew. Volunteers staff the site, and Marler told The Debrief that he had shared with the district "the vision of a more academically oriented archive," with plans to build science lessons around the holdings.

Three major case-file collections anchor the center. The files of the National Investigations Committee on Aerial Phenomena, the Washington group that collected reports and lobbied Congress from 1956 to 1980, came with the Hynek Center's archive. The case files of the Aerial Phenomena Research Organization, which had sat in storage for decades after that group wound down in 1988, followed in November 2023. Smaller collections include Ted Bloecher's HUMCAT case files and material from Jan Aldrich's Project 1947, Antonio Huneeus, Timothy Green Beckley and Philip Mantle. Among the artifacts are clothing worn by Stefan Michalak and an original soil sample from the 1967 Falcon Lake case in Manitoba.

On July 31, 2026, Washington Headquarters Services posted a notice of intent to award the center a sole-source subscription. It would give the All-domain Anomaly Resolution Office digital access to the center's pre-1990 data, metadata and analytical products for one base year and four option years, with responses due August 17. DefenseScoop reported the plan on September 2. A War Department official said market research had found no other organization with comparable "historical depth" or volume of unique records. The department declined to give a cost, and the notice promised no public release.

By gathering the files of the civilian groups that carried out most American UFO investigation from the 1950s through the 1980s, the center now holds much of that era's original case record in a single collection. That concentration of unique records was the government's stated reason for seeking a sole-source subscription to its pre-1990 files for the Pentagon's UAP office.