This is a list of buildings owned by Ohio Wesleyan University in Delaware, Ohio.
University Hall is the home of many administrative offices, including the President's Office, Registrar's Office, and Business Affairs as well as the Modern Foreign Languages departments. It is one of the most notable landmark buildings on campus.
The original Gray Chapel is located in University Hall. It is the home of a $442,000 Johannes Klais Orgelbau Memorial Concert Organ with 82 ranks, 55 stops, and 4,522 pipes.
Ohio Wesleyan's main library is The Leon A. Beeghly Library housing a collection of more than 480,000 items, including rare books, manuscripts, art, microfilm, and federal government publications. Its Audio Visual Center includes a learning laboratory, multimedia classrooms, and individual viewing/listening rooms. The balance of the collection is in two other libraries elsewhere on campus (the science library in the Science Center and the music library in Sanborn Hall). The main Library also houses the Archives of Ohio United Methodism and is a national repository for government documents.
Slocum Hall was built in 1898 and features a Romanesque arcade and enormous glass skylight. It was the University library until 1966 when Beeghly Library was built. Several administrative offices are located in the Hall: the Admissions Office, Financial Aid, Minority Student Affairs, and Foreign Student Services. The Ancient, Medieval, and Renaissance Studies, Classics, Black World Studies, and Women's Studies departments are also located in Slocum Hall.
Elliott Hall holds a significant place in Ohio Wesleyan's history. Delaware was laid out in 1808 and became a popular health resort. Established in 1842, the University was built around the town's Mansion House (now Elliott Hall). Elliott was built in 1833 in the Greek revival style and is the original building on campus.
Currently, Elliott Hall houses OWU's international studies, politics and government, history, sociology and anthropology departments. The fourth floor houses the Book Review section of The Historian, which is the official journal of Phi Alpha Theta, the international history honor society, and is one of the largest circulating English-language history periodicals. The building is also on the National Register of Historic Places.