The Menaul Historical Library of the Southwest (MHL or MHLSW) is located in Bennett Hall on the Menaul School campus in Albuquerque, New Mexico, and functions as a repository for records related to the Presbyterian Church in the Southwest, including churches, schools, and medical missions. The library is named for the Reverend James A. Menaul, who worked in the region. The library is currently preparing to move to a new location in Allison Hall, which is being renovated for that purpose.

The library houses more than 8,000 items, including photographs, student records, memorabilia, yearbooks, tapes and transcripts, manuscripts, and personal papers, which document the history of the Presbyterian schools and missions throughout Arizona, Utah, Colorado, and New Mexico.

Its collection comprises a variety of materials that are used by researchers from the United States and internationally. The archives house over 1,800 folders containing personal letters, official documents, and photographs. The library section contains more than 3,700 books with a significant collection of books and journals detailing the interactions between Protestant missionaries and Native American groups in the Southwest. Additionally, the library holds over 400 objects, including clothing, furniture, musical instruments, and Native American artifacts. The photograph collection includes more than 1,000 historical photographs, negatives, and microfilm.

The library also maintains a collection of yearbooks from Menaul School and the Wasatch Academy dating to 1909, many of which have been digitized and are publicly available.