The Arena Stage records consist of material that spans the theater's history from 1949 to 2010, including production notebooks, photographs, audiotapes, videotapes, playbills, scrapbooks, scripts, correspondence, and other production materials, as well as administrative records pertaining to the theater's finances, publicity, buildings, and programs.

Series 1: Administrative records (1949-2007) documents the creation, operation, and maintenance of Arena Stage and its various programs. It is further divided into 6 subseries. Subseries 1.1: Correspondence includes correspondence arranged alphabetically by the correspondent's last name or by organizational name. Some correspondence is further aggregated and then organized alphabetically, such as "Play Correspondence" or "Audience Response." Of particular note are letters from President Bill Clinton, Supreme Court Justice Ruth Bader Ginsburg, and King Kong star Fay Wray. Subseries 1.2: Programs, policies, and procedures, includes records of Arena's programs, such as the "Arena Angels" volunteer program and fellowship programs, policies, such as bylaws, diversity policies, and handbooks, and planning, including season planning and long-range plans. This subseries is broken up into four sub-subseries. Sub-subseries 1.3.1: Financial papers documents Arena's finances and includes stockholder documents from its beginnings as a for-profit theater, grant-related documentation after the theater transitioned to a non-profit in the late 1950s, and records of the theater's development office, some of which were kept by department director Elspeth Udvarhelyi. Sub-subseries 1.3.2: Personnel records includes information on staff at Arena Stage arranged alphabetically. Of particular interest are headshots and/or resumes of a number of well-known actors, including James Earl Jones, Morgan Freeman, Henry Winkler, Edward Hermann, Yeardley Smith, Jane Alexander, Swoosie Kurtz, Victor Garber, Ron Perlman, Annette Benning, Olympia Dukakis, John Lithgow, John Voigt, Sigourney Weaver, and Rosemary Harris. Sub-subseries 1.3.3: Casting information contains notes on casting for productions arranged alphabetically by play. Sub-subseries 1.3.4: Production contracts includes official agreements between Arena and others arranged alphabetically by play. Subseries 1.4: Meeting minutes contains meeting minutes from Arena's Board of Trustees, staff, and other subgroups within the organization. Subseries 1.5: Communications and events, is also divided into four sub-subseries. Sub-subseries 1.5.1: Events documents special events held by Arena Stage, including anniversaries, galas, benefits, openings and press events. Sub-subseries 1.5.2: Communications and Marketing includes records produced by the Communications and Marketing departments, including meeting minutes, planning, research, and correspondence. Sub-subseries 1.5.3: Printed Material includes subscriber materials, mailings, brochures, reviews collected and arranged by play title, and programs organized chronologically. Sub-subseries 1.5.4: Theater Communications Group contains correspondence, reports, and other information generated from Arena's association with the Theater Communications Group, an organization of theaters around the United States. Subseries 1.6: Buildings and facilities includes information about and architectural plans for Arena's various buildings over the years, including the Hippodrome, the Old Vat, the 1960 permanent building, and the Kreeger Theater addition.

Series 2: Production Files (1950-2010) is comprised of records related to the artistic development and performance of Arena's plays. It is divided into 6 subseries. Subseries 2.1: Dramaturgical files documents literary, historical and background research done by Arena's literary department for various plays, including articles, research packets, actor's packets, and scripts. It is generally organized alphabetically by play. Subseries 2.2: Playwright subject files contains research on various playwrights, both living and dead, whose work has been performed at Arena. It is organized alphabetically by playwright's last name. Subseries 2.3: Production files includes scripts, blocking information, correspondence, and other material related to the production of Arena's plays. It is arranged alphabetically by play title. Subseries 2.4: Stage manager's reports includes daily reports by the stage manager of productions for the entire runs of many of Arena's plays from the late 1960s to the mid-1990s. The reports include running times, incident reports, and other commentary on the audience and the performance. Subseries 2.5: Wrap files contains documents collected from throughout the runs of various productions, including reviews that reflect the wider response to the play. Subseries 2.6: Producing director's files contains documents from Arena's second Producing director after Zelda Fichandler, Doug Wager, who served from 1991-1998. It includes pre-production speeches given by Wager, as well as planning files.

Series 3: Photographs (1950-1991)is divided into 3 subseries. Subseries 3.1: Production photographs includes photos of scenes from Arena's productions arranged alphabetically by play. Subseries 3.2: Production books includes production photos collected in books, many of which are by professional photographer George de Vincent. Subseries 3.3: Buildings, staff, and events includes photographs of Arena's buildings, staff and cast portraits, and event photographs, such as prints from Arena's 30th anniversary celebration and from Arena's Soviet Union and Israel tours. Subseries 3.4: Negatives and slides includes slides and negatives of Arena's staff and events, as well as some buildings, sets, and production-related images.

Series 4: Oversize (1949-late 2000s) is divided into 3 subseries and contains a variety of oversize material. Subseries 4.1: Braille programs contains programs in Braille for various Arena productions from the 1990s and early 2000s. Subseries 4.2: Miscellaneous artwork and programs includes posters from Arena productions and events, enlarged photos, costume sketches, and other oversized material, such as a large model of the Mead Center for American Theater. Subseries 4.3: Scrapbooks contains scrapbooks created for each of Arena's seasons up until 1988. It also includes scrapbooks for Arena's tour of the Soviet Union and of visitors to Arena.

Series 5: Audiovisual (1970-2007) contains several types of formats and is divided into 3 subseries. Series 5.1: Performances on VHS contains VHS tapes (a few of which have associated DVDs) of performances at Arena arranged alphabetically by play title. Series 5.2: Reel-to-reel contains production and event footage on reel-to-reel film. Series 5.3: Other audiovisual formats and VHS tapes contains footage of events and productions on audiocassette, Betacam, and U-matic tapes.